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These are the papers of the journal Demonstratio Mathematica. Papers are distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Until the end of 2013 the paper version was, in case of discrepancies, considered as primary and original. The paper version was later discontinued.
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DEMONSTRATIO MATHEMATICA Volume 49, Issue 4 (Dec 2016)
 
Author(s)TitlePagesFull text#downloads
1. Andrzej Nowik  Marczewski-Burstin representations vs. Bernstein and Dense subsets372-378
157120
2. Ilker Akkus, Emrah Kilic, Nese Omur, Yucel Turker Ulutas  Generalized binomial convolution of the $m$-th powers of the consecutive integers with the general Fibonacci sequence379-385
6348
3. Sofiane El-Hadi  Painlevé equation PII and strongly normal extensions386-397
6447
4. Zheng Liu  More on Ostrowski type inequalities for some s-convex functions in the second sense398-412
4337
5. B. Fadli, S. Kabbaj, Driss Zeglami  A variant of Jensen′s functional equation on semigroups413-420
5043
6. Stefan Czekalski  Remarks on interpolations of functions by polynomials421-429
4034
7. B. Komal, S. Pandoh, K. Raj  Multiplication operators on Cesaro sequence spaces430-436
4235
8. A. Mbarki, R. Naciri  Probabilistic generalized metric spaces and nonlinear contractions437-452
4442
9. Agnieszka Wałachowska  Some convergence properties of the sum of Gaussian functionals453-462
2723
10. Ismail Nikoufar  A perspective approach for characterization of Lieb concavity theorem463-469
4339
 


DEMONSTRATIO MATHEMATICA Volume 49, Issue 3 (Sep 2016)
 
Author(s)TitlePagesFull text#downloads
1. H. P. Sankappanavar  A note on regular De Morgan semi-Heyting algebras252-265
125104
2. A. Laugier, M. Saikia  A combinatorial proof of a result on generalized Lucas polynomials266-270
6553
3. Stephan Foldes, Sándor Radeleczki  Interval decomposition lattices are balanced271-281
2923
4. S. Atani, S. Hesari, Mehdi Khoramdel  C3-modules282-292
5646
5. N. Asai, Anna Krystek, Ł. J. Wojakowski  Interpolations of Bargmann type measures293-301
8934
6. Dinh Cong Huong  Persistence and global attractivity for a discretized version of a general model of glucose-insulin interaction302-318
2417
7. M. Arunkumar  Stability of n-dimensional Arun-additive functional equation in generalized 2-normed space319-330
2926
8. Zhidong Pan  Derivable maps and generalized derivations on nest and standard algebras331-344
2925
9. Yılmaz Gunduzalp  Semi-slant submersions from almost product Riemannian manifolds345-356
146121
10. M. Imdad, K. V. S. Parvathi, K. Rao  Common fixed point theorems for mappings under (CLR_S)-property in partial metric spaces357-371
8374
 


DEMONSTRATIO MATHEMATICA Volume 49, Issue 2 (Jun 2016)
 
Author(s)TitlePagesFull text#downloads
1. Anjan Bhuniya, Kanchan Jana  Semigroup of k-bi-ideals of a semiring with semilattice additive reduct119-128
167135
2. Sara Arias-De-Reyna, Luis Dieulefait, Gabor Wiese  Classification of subgroups of symplectic groups over finite fields containing a transvection129-148
153119
3. Maja Andric, Ana Barbir, Josip Pečarić, Gholam Roqia  Corrigendum to “Generalizations of Opial-type inequalities in several independent variables”149-154
4842
4. Ewa Łazarow, Małgorzata Turowska  On the k-pseudo symmetric and ordinary differentiation155-160
4031
5. Sujoy Majumder  On an open problem of Xiao-Bin Zhang and Jun-Feng Xu161-182
6456
6. E. Dundar, F. Nuray, R. Patterson  Asymptotically lacunary statistical equivalence of double sequences of sets183-196
3633
7. Jose Almira, Laszlo Szekelyhidi  Montel-type theorems for exponential polynomials197-212
3930
8. Samir K. Bhandari, Binayak S. Choudhury  P-cyclic C-contraction result in Menger spaces using a control function213-223
6050
9. Jasdev Bhatti, Ashok Chitkara, Mohit Kakkar  Stochastic analysis of dis-similar standby system with discrete failure, inspection and replacement policy224-235
3120
10. Zbigniew J. Jurek  On a method of introducing free-infinitely divisible probability measures236-251
5241
 


DEMONSTRATIO MATHEMATICA Volume 49, Issue 1 (Mar 2016)
 
Author(s)TitlePagesFull text#downloads
1. George A. Anastassiou  Univariate right fractional polynomial high order monotone approximation1-10
140117
2. Adam Najdecki, Józef Tabor  Conditionally approximately convex functions11-17
7867
3. Sadegh Abbaszadeh, M. Gordji  Intuitionistic fuzzy almost Cauchy–Jensen mappings18-25
6454
4. Jeff Connor  Ideal convergence generated by double summability methods26-37
5846
5. Lucian Coroianu, Sorin G. Gal  Localization results for the non-truncated max-product sampling operators based on Fejer and Sinc-type kernels38-49
2820
6. Juha Kinnunen, Pilar Silvestre  Resistance conditions, Poincare inequalities, the Lip-lip condition and Hardy′s inequalities50-63
3228
7. H. Bouhadjera  More general common fixed point theorems under a new concept64-78
9883
8. M. Imdad, K. Rao, K. Rao  A Suzuki type unique common fixed point theorem for two pairs of hybrid maps under a new condition in partial metric spaces79-94
7257
9. Harish Chandra, Shailesh Trivedi  Local spectral theory of endomorphisms of the disk algebra95-106
4135
10. G. Saluja  Convergence of modified S-iteration process for two asymptotically quasi-nonexpansive type mappings in CAT(0) spaces107-118
7061
 


DEMONSTRATIO MATHEMATICA Volume 48, Issue 4 (Dec 2015)
Proceedings of the AAA88—88th Workshop on General Algebra
Editors for the Special Issue: Anna Romanowska, Jonathan D. H. Smith

 
Author(s)TitlePagesFull text#downloads
1. Anna Romanowska  Preface473-474
134105
2. D. N. Ashikhmin, Mikhail Volkov, Wen Ting Zhang  The finite basis problem for Kiselman monoids475-492
6252
3. Janis Cirulis  Relatively orthocomplemented skew nearlattices in Rickart rings493-508
6045
4. D. Davidova, Yuri Movsisyan  Weakly idempotent lattices and bilattices, non-idempotent Plonka functions509-535
4334
5. Danica Jakubikova-Studenovska, Miroslava Sulicova  Green’s relations in the commutative centralizers of monounary algebras536-545
2421
6. Małgorzata Jastrzębska, Jan Krempa  Lattices of annihilators in commutative algebras over fields546-553
5741
7. Jan Krempa, Agnieszka Stocka  On generating sets of finite algebras554-561
4035
8. Dragan Masulovic  Retracts of ultrahomogeneous structures in the context of Katetov functors562-578
2217
9. Boris Plotkin, Eugene Plotkin  Multi-sorted logic and logical geometry: some problems579-619
2922
10. Jonathan D. H. Smith  One-sided quantum quasigroups and loops620-636
4737
11. Yuan Nai, Dongsheng Zhao  Open set lattices of subspaces of spectrum spaces637-652
4025
 


DEMONSTRATIO MATHEMATICA Volume 48, Issue 3 (Sep 2015)
 
Author(s)TitlePagesFull text#downloads
1. C. Gallardo, A. Orellano  Free algebras over a poset in varieties of Łukasiewicz-Moisil algebras348-356
168149
2. George A. Anastassiou  Fractional representation formulae under initial conditions and fractional Ostrowski type inequalities357-378
7565
3. Belkacem Said-Houari  Decay rates of the solution to the Cauchy problem of the type III Timoshenko model without any mechanical damping379-380
6861
4. Zoltan Finta  Korovkin type theorem for sequences of operators depending on a parameter381-403
6861
5. Prerna Maheshwari, Om Prakash, Diwaker Sharma  Certain generalized q-operators404-412
9884
6. M. Dhakne, Jain Rupali  On existence of solutions of impulsive nonlinear functional neutral integro-differential equations with nonlocal condition413-423
6354
7. Takahiro Hasebe, Noriyoshi Sakuma  Unimodality of Boolean and monotone stable distributions424-439
4442
8. Kristaq Kikina, Luljeta Kikina  Fixed point theorems on generalized metric spaces for mappings in a class of almost j-contraction440-451
115100
9. Janusz Januszewski  Translative packing of unit squares into equilateral triangles452-461
7367
10. Shikha Maheshwari, Amit Srivastava  Some new results on information transmission over noisy channels462-472
9972
 


DEMONSTRATIO MATHEMATICA Volume 48, Issue 2 (Jun 2015)
Proceedings of the Workshop “Geometric Singularity Theory”
Editors for the Special Issue: Wojciech Domitrz, Goo Ishikawa, Shyuichi Izumiya

 
Author(s)TitlePagesFull text#downloads
1. Wojciech Domitrz, Goo Ishikawa, Shyuichi Izumiya  Preface by the editors for the special issue “Geometric Singularity Theory”107-111
198166
2. J. W. Bruce  A note on Peter Giblin112-114
163154
3. Wojciech Domitrz  A note on Stanisław Janeczko115-117
148140
4. T. Fukuda, Stanisław Janeczko  Symplectic singularities and solvable Hamiltonian mappings118-146
137129
5. Tomonori Fukunaga, Masatomo Takahashi  Evolutes and involutes of frontals in the Euclidean plane147-166
128112
6. Peter Giblin, Graham Reeve  Centre symmetry sets in a family of plane curves167-192
103101
7. Goo Ishikawa, Yumiko Kitagawa, Wataru Yukuno  Duality on geodesics of Cartan distributions and sub-Riemannian pseudo-product structures193-216
9682
8. Shyuichi Izumiya, Saki Otani  Flat approximations of surfaces along curves217-241
9789
9. Zbigniew Jelonek  Polynomial mappings with small degree242-249
113111
10. Konstantinos Kourliouros  Gauss-Manin Connections for Boundary Singularities and Applications in Isochore Geometry250-288
8478
11. Naohiko Kasuya  On the links of simple singularities, simple elliptic singularities and cusp singularities289-312
7169
12. Piotr Migus  Cr-right equivalence of analytic functions313-321
9789
13. Żaneta Trębska  Symplectic U7,U8 and U9 singularities322-347
9691
 


DEMONSTRATIO MATHEMATICA Volume 48, Issue 1 (Mar 2015)
 
Author(s)TitlePagesFull text#downloads
1. Juan Tur, Juan Vidal  On the directly and subdirectly irreducible many-sorted algebras1-12
345325
2. Grzegorz Dymek, Andrzej Walendziak  Soft set theory applied to general algebras13-20
277268
3. Jan Spaliński  The lifting-extension problem for duchain complexes of Dwyer and Kan21-30
193188
4. George A. Anastassiou  Harmonic multivariate Ostrowski and Grüss type inequalities for several functions31-52
219212
5. Mariusz Jurkiewicz, Bogdan Przeradzki  Existence of solutions for higher order BVP with parameters via critical point theory53-61
204199
6. Adam Kubica  A regularity criterion for positive part of radial component in the case of axially symmetric Navier-Stokes equations62-72
234223
7. Dorota Budzik  The monomial difference majorized by single variable function73-76
172169
8. V. Mishra, P. Patel  Approximation properties of certain summation integral type operators77-90
216198
9. Thangudige Phaneendra, D. Surekha  A generalized common fixed point theorem under an implicit relation91-99
260234
10. Piotr Pawlas, Dominik Szynal  On a characterization of a power distribution100-106
256233
 


DEMONSTRATIO MATHEMATICA Volume 47, Issue 4 (Dec 2014)
 
Author(s)TitlePagesFull text#downloads
1. Wiesław Królikowski  New geometric interpretation of quaternionic Fueter functions776-783
385347
2. Nejc Širovnik, Joso Vukman  On derivations of operator algebras with involution784-790
323282
3. Alan Cain, Victor Maltcev  Hopfian and co-hopfian subsemigroups and extensions791-804
259234
4. Peter Danchev  On m-ω1-pω+n-projective Abelian p-groups805-825
267234
5. S. Abbas, Mouffak Benchohra  Ulam stabilities for the Darboux problem for partial fractional differential inclusions826-838
282260
6. Maja Andric, A. Barbir, J. Pečarić, G. Roqia  Generalizations of Opial-type inequalities in several independent variables839-847
116101
7. J. Widomski  On the coefficient problem of meromorphic harmonic mappings848-853
11799
8. M. B. Dhakne, Jain Rupali  On some qualitative properties of mild solutions of nonlocal semilinear functional differential equations854-865
12896
9. Adrian Karpowicz  The existence of unique solution of the hyperbolic functional differential equation866-877
131108
10. Włodzimierz Łenski, Bogdan Szal  Approximation of conjugate functions by general linear operators of their Fourier series at the Lebesgue point878-892
11294
11. Kishor D. Kucche  Existence and controllability results for mixed functional integrodifferential equations with infinite delay893-909
11796
12. Jurancy Ereu, Jose Gimenez, Nelson J. Merentes  On bi-dimensional second µ-variation910-932
11293
13. Wadie Aziz  On Nemytskii operator in the space of functions of bounded (p,2,α)-variation with respect to the weight function933-948
120101
14. Mohamed Ahmed, Sunny Chauhan, M. Imdad, A. Soliman  Hybrid fixed point theorems in symmetric spaces via common limit range property949-962
164134
15. A. Mirmostafaee, M. Omidvar, O. Rahpeyma  Numerical radius inequalities for finite sums of operators963-970
138120
16. Valeriu Popa  A general coincidence and common fixed point theorem for two hybrid pairs of mappings971-978
6455
17. Jan Jakóbowski, Danuta Kacperek  Havlicek-Tietze configurations in various projective planes979-988
3128
18. Marek Lassak  Banach-Mazur distance between convex quadrangles989-993
5041
19. S. Shukla, Akhilesh Yadav  Radical transversal lightlike submanifolds of indefinite para-Sasakian manifolds994-1011
4437
20. Tshidibi Batubenge, Mukinayi Tshilombo  Topologies on product and coproduct Frolicher spaces1012-1024
3933
 


DEMONSTRATIO MATHEMATICA Volume 47, Issue 3 (Sep 2014)
 
Author(s)TitlePagesFull text#downloads
1. Rosana Entizne, Luiz Monteiro, Sonia Savini, Ignacio Viglizzo  Free monadic Tarski and MMI3-algebras509-521
216148
2. R. Borzooei, O. Zahiri  Semitopological BL-algebras and MV -algebras522-538
153111
3. Joao Pita Costa  On the coset category of a skew lattice539-554
182128
4. Maurice Kianpi  Weak homomorphisms of coalgebras beyond set555-580
10768
5. Aleksandra Karasińska, Elżbieta Wagner-Bojakowska  Microscopic and strong mircoscopic sets on the plane, Fubini theorem and Fubini property581-594
10464
6. Harrat Chahrazed, Abderrahmane Senoussaoui  On a class of h-Fourier integral operators595-606
12280
7. Shunzi Guo, Jinyun Jin  One can hear the area of a torus by hearing the eigenvalues of the polyharmonic operators607-614
10366
8. Min Zhang  Single-valley-extended continuous solutions for the Feigenbaum′s functional equation f(φ(x))=φ(φ(f(x)))615-626
11175
9. Cemal Belen, Mustafa Yildirim  On some new sequence spaces and statistical convergence methods for double sequences627-637
11072
10. Celal Cakan, Erdinç Dundar  Rough I-convergence638-651
13993
11. Ayhan Esi, Binod Ch. Tripathy  On lacunary p-absolutely summable fuzzy real-valued double sequence space652-661
10772
12. Gancho Tachev  Approximation of bounded continuous functions by linear combinations of Pfillips operators662-671
11772
13. Jianbin Guo, Jiankui Li, Qihua Shen  On (m, n)-derivations of some algebras672-694
13190
14. Deepmala, H. Pathak  Remarks on occasionally weakly compatible maps versus occasionally weakly compatible mappings695-703
11875
15. Ajay Gairola, Mahesh C. Joshi, Jay Singh  Coincidence and fixed point for weakly reciprocally continuous single-valued and multi-valued maps704-713
12787
16. K. Rao, K. Rao  Unique common fixed point theorems for pairs of hybrid maps under a new condition in partial metric spaces714-724
6150
17. Ali Akbar, A. Sarkar  Generalized Sasakian space forms with projective curvature tensor725-737
4841
18. T. Zawadzki  Examples of non-conformal submersions from spheres with umbilical fibers738-747
2827
19. Diana Dziewa-Dawidczyk, Zbigniew Pasternak-Winiarski  Integration on differential spaces748-762
5750
20. Łukasz Gleń  Solutions to the quasistatic problem derived from the theory of inelastic deformations with the growth condition763-775
2725
 


DEMONSTRATIO MATHEMATICA Volume 47, Issue 2 (Jun 2014)
 
Author(s)TitlePagesFull text#downloads
1. V. Aslanyan, Yuri Movsisyan  De Morgan functions and free de Morgan algebras271-283
197146
2. Hernando Gaitán  Endomorphisms of implication algebras284-288
13094
3. Michał Eckstein, Michał Heller, Leszek Pysiak, Wiesław Sasin  Semidirect product of groupoids and associated algebras289-299
12080
4. Gerd Herzog, Peer Kunstmann  Inequalities and means from a cyclic differential equation300-309
10869
5. V. B. L. Chaurasia, Yudhveer Singh  Generalized elliptic-type integrals and generating functions310-323
9663
6. Qamar Din  On a system of rational difference equation324-335
9358
7. Grażyna Krech, Eugeniusz Wachnicki  Direct estimate for some operators of Durrmeyer type in exponential weighted space336-349
10666
8. Bartosz Kosma Kwaśniewski  Crossed product of a C*-algebra by a semigroup of interactions350-370
9559
9. Safeer Hussain Khan  Weak convergence for nonself nearly asymptotically nonexpansive mappings by iterations371-381
9461
10. Prasit Cholamjiak, Watcharaporn Cholamjiak, Suthep Suantai  Viscosity approximation methods for nonexpansive multi-valued nonself mappings and equilibrium problems382-395
8047
11. Mujahid Abbas, Shaban Sedghi, Nabi Shobe  Common fixed point of four mappings satisfying implicit generalized weak contractive type condition396-410
11279
12. Mohammed Berkani, Mohammed Kachad, Hassan Zariouh  Extended Weyl-type theorems for direct sums411-422
12078
13. Hariwan Z. Ibrahim, Alias B. Khalaf  Some applications of minimal Pγ-open sets423-432
10171
14. Jeetendra Aggarwal, J. Kohli, Davinder Singh, B. Tyagi  Rδ-supercontinuous functions433-448
12585
15. Thangudige Phaneendra, V. Siva Rama Prasad  Two generalized common fixed point theorems449-458
13597
16. Giovanni Moreno  On the canonical connection for smooth envelopes459-464
2824
17. Michał Cukrowski, Michał Stronkowski  Remarks on smooth real-compactness for Sikorski spaces465-473
4031
18. Krzysztof Bartoszek, Michał Krzemiński  Critical case stochastic phylogenetic tree model via the Laplace transform474-481
3526
19. Davod Khojasteh Salkuyeh  An iterative method for symmetric positive semidefinite linear system of equations482-492
3329
20. Maciej Mączyński  On some consequences of the functional generalization of the parallelogram identity493-506
5343
21. Przemysław Matuła, Michał Seweryn  Acknowledgement of priority “Weighted averages of random variables and exact weights”507-508
5348
 


DEMONSTRATIO MATHEMATICA Volume 47, Issue 1 (Mar 2014)
 
Author(s)TitlePagesFull text#downloads
1. David J. Foulis, Sylvia Pulmannova  The center of a generalized effect algebra1-21
215155
2. Vincenzo De Filippis, Basudeb Dhara  Cocentralizing generalized derivations on multilinear polynomial on right ideals of prime rings22-36
12983
3. M. Emin Ozdemir, Mehmet Zeki Sarikaya, Erhan Set  Some Ostrowski′s type inequalities for functions whose second derivatives are s convex in the second sense and applications37-47
12882
4. Paulina Szczuka  Maximal classes for lower and upper semicontinuous strong Swiatkowski functions48-55
8958
5. Mireya Bracamonte, Jurancy Ereu, Jose Gimenez, Nelson J. Merentes  Uniformly continuous superposition operators in the space of functions of bounded n-dimensional Φ-variation56-68
9758
6. Vincent Grandjean  Gradient trajectories for plane singular metrics I: oscillating trajectories69-78
8851
7. Zeynep Fidan Kocak, Figen Ozpinar, Sermin Ozturk  Oscillation for certain impulsive partial difference equations79-102
11271
8. Pham Hong Danh, Huynh Thi Hoang Dung, Le Thi Phuong Ngoc, Nguyen Thanh Long  Linear approximation and asymptotic expansion associated with the system of nonlinear functional equations103-124
10570
9. Roman Wituła  Certain multiplier version of the Riemann derangement theorem125-129
8853
10. Mohammad Ashraf, Almas Khan, Muzibur Rahman Mozumder  On Jordan triple α*-centralizers of semiprime rings130-136
12273
11. Vasile Lauric  Orthogonal polynomials on ellipses and their recurrence relations137-145
10561
12. Nguyen Van, Dariusz Wardowski  Fixed points of f-weak contractions on complete metric spaces146-155
179121
13. Jin Choi, Dae Ho Jin, Jae Lee  The explicit determinations of dual plane curves and dual helices in terms of its dual curvature and dual torsion156-169
9756
14. Manish Gogna, Rakesh Kumar, R. K. Nagaich  On totally contact umbilical contact CR-lightlike submanifolds of indefinite Sasakian manifolds170-178
10266
15. Srikanta Mohanta, Sushanta Kumar Mohanta  Some fixed point results for mappings in G-metric spaces179-191
142108
16. Tsasa Lusala, Jedrzej Sniatycki  Slice theorem for differential spaces and reduction by stages192-210
2722
17. Sebastian K. Kuniewski, Jolanta Misiewicz  Positive definite norm dependent matrices in stochastic modeling211-231
3430
18. Agnieszka M. Gdula, Andrzej Krajka  On the complete convergence for randomly and nonrandomly indexed random fields232-252
2522
19. Arindam Bhattacharyya, Buddhadev Pal  Volume of a tetrahedron revisited253-257
6856
20. Ewa Marciniak, Jakub Trybuła  Optimal dividend policy in discrete time258-270
8961
 


DEMONSTRATIO MATHEMATICA Volume 46, Issue 4 (Dec 2013)
 
Author(s)TitlePagesFull text#downloads
1. Grzegorz Dymek  On the category of pseudo-BCI-algebras631-644
237195
2. Li Yin, Changjian Zhao  Some new generalizations of Maroni inequality on time scales645-654
8664
3. Flavia-Corina Mitroi, Kazimierz Nikodem, Szymon Wąsowicz  Hermite-Hadamard inequalities for convex set-valued functions655-662
11288
4. Susheel Kumar, Girja S. Srivastava  On the generalized order and generalized type of entire monogenic functions663-677
7946
5. Paweł Jerzy Szabłowski  On the q-Hermite polynomials and their relationship with some other families of orthogonal polynomials679-708
8861
6. Amine Eltaief, Stephane Maingot  Second order abstract differential equations of elliptic type set in ℝ+709-727
5538
7. Harun Karsli  Some convergence results for nonlinear singular integral operators729-740
7247
8. S. C. Arora, Gopal Datt  Injective composition operators on Lorentz-Bochner spaces741-756
8351
9. Christiane Godet-Thobie, F. Merghadi  Common fixed point theorems under contractive conditions of integral type in symmetric spaces757-780
10277
10. Seyit Temir  Convergence of an implicit iteration process with errors for two asymptotically nonexpansive mappings781-793
6442
11. Ozcan Gelisgen, Rustem Kaya  The alpha-version of the Stewart′s theorem795-808
8758
 


DEMONSTRATIO MATHEMATICA Volume 46, Issue 3 (Sep 2013)
 
Author(s)TitlePagesFull text#downloads
1. Felicja Okulicka-Dłużewska, Alicja Smoktunowicz  Numerical solutions of symmetric saddle point problem by direct methods437-451
11387
2. Shakir Ali, Basudeb Dhara, Atanu Pattanayak  Identities with generalized derivations in semiprime rings453-460
10782
3. Janusz Matkowski  Mean-value theorems and some symmetric means461-474
9274
4. Mevlut Tunc  Hermite-Hadamard type inequalities via m and (α,m)-convexity475-483
8470
5. Zhimin Song, Li Yin  Inequalities for Γp function and Gamma function485-490
7865
6. George A. Anastassiou  Lp-general approximations by multivariate singular integral operators491-502
4842
7. Somia Muftah Amsheri, Valentina Zharkova  Differential subordinations and superordinations for p-valent functions defined by fractional derivative operator503-512
4139
8. Lucyna Trojnar-Spelina  Applications of convolution properties513-523
5750
9. Xiaoli Liu, Shaoxi Luo, Lin Tian, Liangpeng Xiong  Extreme points and support points of a class of analytic functions with missing coefficients525-532
5852
10. O. A. Daman, M. A. Pathan  Laplace transform of the logarithmic functions and their applications533-542
5046
11. Jose Gimenez  The Nemitskij operator on Lipk-type and BVk-type spaces543-558
3228
12. Arif Rafiq  Fixed point iterations of three asymptotically pseudocontractive mappings559-569
5249
13. Gopal Datt, Deepak Kumar Porwal  Product of weighted Hankel and weighted Toeplitz operators571-583
4237
14. Włodzimierz Laskowski, H. T. Nguyen  Effective energy integral functionals for thin films in the Orlicz-Sobolev space setting585-604
4334
15. Janusz Januszewski  Translative covering by unit squares605-616
4439
16. Carlos Carpintero, N. Rajesh, Ennis Rosas  On (ɣ,ɣ´)-preopen sets617-629
8469
 


DEMONSTRATIO MATHEMATICA Volume 46, Issue 2 (Jun 2013)
 
Author(s)TitlePagesFull text#downloads
1. Joao Pita Costa  Erratum to: On the coset structure of a skew lattice245-246
10395
2. Jan Jakóbowski  Some examples of denumerable pseudo-ordered fields and their applications to geometry247-256
6052
3. Ajda Fosner  A note on generalized (m,n)-Jordan centralizers257-262
7564
4. Maria Papatriantafillou, Efstathios Vassiliou  Grassmann sheaves and the classification of vector sheaves263-270
2823
5. Said Abbas, Mouffak Benchohra  On the set of solutions of fractional order Riemann-Liouville integral inclusions271-281
3935
6. P. K. Jain, V. Jain, Poonam Sharma  A class of univalent functions involving a differentio-integral operator283-297
7368
7. Bruno de Malafosse  Solvability of certain sequence spaces inclusion equations with operators299-314
3228
8. Hubert Wysocki  The nabla difference model of the operational calculus315-326
2922
9. Binayak S. Choudhury, Amaresh Kundu  A Kannan-like contraction in partially ordered spaces327-334
6056
10. Xiangling Zhu  Weighted composition operators from weighted Hardy spaces to weighted-type spaces335-344
4336
11. Mobin Ahmad, Lovejoy Das, Abdul Hasseb, Mohd.Danish Siddiqi  On semi-invariant submanifolds of a nearly trans-Sasakian manifold admitting a semi-symmetric semi-metric connection345-359
4843
12. Aleksander Misiak, Eugeniusz Stasiak, Maria Szmuksta-Zawadzka  Invariants of a pair of directions in geometry E1n and their interpretation361-371
2722
13. Mohamed Akkouchi  Well-posedness and common fixed points for two pairs of maps using weak contractivity373-382
5242
14. Hassen Aydi  A common fixed point result by altering distances involving a contractive condition of integral type in partial metric spaces383-394
6359
15. Erdal Ekici, Saeid Jafari  On rare s-precontinuity for multifunctions395-403
6854
16. Vyomesh Pant  Strict contractive conditions and common fixed point theorems with applications405-413
6254
17. Mohammad Sarsak  On some properties of generalized open sets in generalized topological spaces415-427
9378
18. Paulina Szczuka  Darboux property for polynomials in Golomb′s and Kirch′s topologies429-435
4037
 


DEMONSTRATIO MATHEMATICA Volume 46, Issue 1 (Mar 2013)
 
Author(s)TitlePagesFull text#downloads
1. Klaus Denecke, N. Sarasit, Shelly Wismath  Idempotent tree languages1-14
115109
2. Roman Wituła  Binomials transformation formulae of scaled Lucas numbers15-27
7564
3. Tsetska Rashkova  On some properties and special identities in the second order matrix algebra over Grassmann algebras29-36
3525
4. Kamil Demirci, Sevda Karakus  Four-dimensional matrix transformation and A-statistical fuzzy Korovkin type approximation37-49
4939
5. Abhijit Banerjee, Pulak Sahoo  Non linear differential polynomials sharing fixed points with finite weights51-62
3535
6. K. K. Dixit, Saurabh Porwal  Some properties of generalized convolution of harmonic univalent functions63-74
5047
7. Benharrat Belaidi  The frequency of the zeros of some differential polynomials75-86
3635
8. Zhimin He, Jianhua Shen  The boundary value problem of higher order differential equations with delay87-100
4038
9. Tongxing Li, Shuhong Tang, E. Thandapani  Oscillation of higher order half-linear neutral differential equations101-109
3226
10. E. S. Aly, M. M. El-Dessoky, E. Saleh, M. T. Yassen  On Hopf bifurcation of Liu chaotic system111-121
4431
11. Dinh Cong Huong, Nguyen Van Mau  On a nonlinear difference equation with variable delay123-135
5348
12. Sanjoy Kr. Ghosal, Sudip Kumar Pal  On asymmetric I and I*-divergence137-147
4139
13. Waad Sulaiman  Some new factor theorem for absolute summability149-156
4840
14. Indu Bala Bansal  On Cesaro sequence space defined by a modulus function157-163
6254
15. Belmesnaoui Aqzzouz, Khalid Bouras  Weak and almost Dunford-Pettis operators on Banach lattices165-179
4440
16. Kristaq Kikina, Luljeta Kikina  A fixed point theorem in generalized metric spaces181-190
122116
17. Jerzy Grzybowski, Andrzej Leśniewski, Tadeusz Rzeżuchowski  The completion of the space of convex, bounded sets with respect to the Demyanov Metric191-196
5042
18. Magdalena Górajska, Władysław Wilczyński  Density topology generated by the convergence everywhere except on a finite set197-208
3731
19. Mona Khare, Surabhi Tiwari  Completion in a common supercategory of MET, UAP,WSAP and NEAR209-227
3122
20. J. K. Kohli, Davinder Singh, B. K. Tyagi  RCL-supercontinuous functions229-244
6257
 


DEMONSTRATIO MATHEMATICA Volume 45, Issue 4 (Dec 2012)

Providing open access for this volume was possible thanks to the financial support of the Ministry of Science and Higher Education of the Republic of Poland, under the agreement 1069/P-DUN/2011.


 
Author(s)TitlePagesFull text#downloads
1. Bivas Dinda, Iqbal H. Jebril, T. K. Samanta  Fuzzy anti-norm and fuzzy ⍺-anti-convergence739-754
152133
2. Konrad Pióro  Subalgebra lattices of a partial unary algebra755-777
6159
3. Roman Wituła  Ramanujan type trigonometric formulae779-796
9274
4. Zbigniew Jelonek  Solving polynomial equations797-805
9482
5. Lahcen Oukhtite  Generalized Jordan left derivations in rings with involution807-812
7063
6. Jolanta Kosman  Cardinal invariants concerning closed graph functions813-819
4037
7. Grażyna Kwiecińska  On sup-measurability of multifunctions with some density properties821-833
3534
8. Murat Caglar, Erhan Deniz, Halit Orhan  Fekete-Szegö problem for certain subclasses of analytic functions835-846
6655
9. Przemysław Głowiński, Andrzej Łada  On exponential decay for linear porous-thermo-elasticity system - part I847-868
3732
10. Milena Matusik  Implicit difference schemes for quasilinear parabolic functional equations869-886
3630
11. Sanjoy Kr. Ghosal  I-uniform continuity and I-uniform boundedness of a function887-894
5747
12. Aldona Dutkiewicz  An existence theorem for solutions of an integro-differential equation in Banach spaces895-899
6360
13. S. S. Bhatia, Sanjay Kumar, Saurabh Manro  Weakly compatible maps of type (A) in G-metric spaces901-908
7162
14. Hajime Sato, Keizo Yamaguchi  Lie tensor product manifolds909-927
4541
15. Mohammad Sarsak  Weakly μ-compact spaces929-938
8771
16. Katarzyna Troczka  Continuity of subquadratic set-valued functions939-946
4138
17. Jeetendra Aggarwal, J. K. Kohli  Closedness of certain classes of functions in the topology of uniform convergence947-952
4136
18. Carlos Carpintero, N. Rajesh, Ennis Rosas  Preopen sets in biminimal spaces953-961
6550
19. Bishwambhar Roy  Unifications of almost regular, almost normal and mildly normal topological spaces963-974
5048
20. Diana Dziewa-Dawidczyk, Zbigniew Pasternak-Winiarski  Differential completions and compactifications of a differential space975-992
4439
 


DEMONSTRATIO MATHEMATICA Volume 45, Issue 3 (Sep 2012)

Providing open access for this volume was possible thanks to the financial support of the Ministry of Science and Higher Education of the Republic of Poland, under the agreement 1069/P-DUN/2011.


 
Author(s)TitlePagesFull text#downloads
1. Marek Pałasiński  The variety of all commutative BCK-algebras is generated by its finite members as a quasivariety495-518
136123
2. Grzegorz Bińczak, Joanna Kaleta  Finite directly indecomposable monogenic entropic quasigroups with quasi-identity519-532
4844
3. M. Zeki Sarikaya  On the Ostrowski type integral inequality for double integrals533-540
8067
4. L. Dileep, S. Latha  On p-valent functions of complex order541-547
10276
5. Aurel Diamandescu  Note on the existence of a Ψ-bounded solution for a Lyapunov matrix differential equation549-560
3431
6. Mieczysław Cichoń, I. Kubiaczyk, Aneta Sikorska-Nowak, A. Yantir  Existence of solutions of the dynamic Cauchy problem in Banach spaces561-573
5945
7. Marek Galewski, Joanna Smejda  Some remarks on nonlinear discrete boundary value problems575-583
5137
8. Mahmut Isik  Some classes of almost convergent paranormed sequence spaces defined by Orlicz functions585-592
8972
9. Bijayalaxmi Panigrahi, P. D. Srivastava  Spectrum and fine spectrum of generalized second order difference operator Δ2uvw on sequence space ℓ1593-609
7050
10. N. P. S. Bawa, Praveen Kumar Shrivastava, Yogesh K. Vijaywar  Coincidence and common fixed point theorems for hybrid contractions in symmetric space611-620
6959
11. S. N. Mishra, H. K. Pathak, B. E. Rhoades  Some weakly contractive mapping theorems in partially ordered spaces and applications621-636
8874
12. Marzena Szajewska  Gaussian curvature of the Bergman metric with weighted Bergman kernel on the unit disc637-644
4840
13. Jing Mao, Shaodong Qin  On pinching theorems for compact pseudo-umbilical submanifold645-654
4541
14. Jacek Hejduk, Anna Loranty  Remarks on the topologies in the Lebesgue measurable sets655-663
5147
15. Michał Cukrowski, Zbigniew Pasternak-Winiarski, Wiesław Sasin  On real-valued homomorphisms in countably generated differential structures665-676
4134
16. Jeetendra Aggarwal, J. K. Kohli  Quasi cl-supercontinuous functions and their function spaces677-697
7148
17. Mona Khare, Surabhi Tiwari  L-approach merotopies and their categorical perspective699-716
3530
18. Piu Ghosh, Atasi Deb Ray  A characterization of completeness of generalized metric spaces using generalized Banach contraction principle717-724
6455
19. Piotr Zwierkowski  Convergence of backward finite difference scheme for von Foerster equation with functional dependence725-737
3429
 


DEMONSTRATIO MATHEMATICA Volume 45, Issue 2 (Jun 2012)
Dedicated to Prof. Agnieszka Plucińska on her 80th birthday
Editors for the Special Issue: Włodzimierz Bryc, Jacek Wesołowski

Providing open access for this volume was possible thanks to the financial support of the Ministry of Science and Higher Education of the Republic of Poland, under the agreement 1069/P-DUN/2011.


 
Author(s)TitlePagesFull text#downloads
1. Wlodek Bryc, Jacek Wesołowski  Professor Agnieszka Plucinska′s paths in and around probability215-225
135115
2. Krzysztof Oleszkiewicz, Katarzyna Pietruska-Pałuba  Orlicz-space Hardy and Landau-Kolmogorov inequalities for Gaussian measures227-241
8664
3. Piotr Pawlas, Dominik Szynal  On a new measure of dependence and its applications243-255
5847
4. Jacek Jakubowski, Maciej Wiśniewolski  Conditional version of the Donati-Martin and Yor formula and its applications257-263
3331
5. Wojciech Niemiro, Ryszard Zieliński  Remarks on uniform convergence of random variables and statistics265-274
4035
6. Wlodek Bryc  On integrability of quadratic harnesses275-282
3330
7. Zdzisław Rychlik, Konrad S. Szuster  On the random functional central limit theorems with almost sure convergence for subsequences283-296
2422
8. Lech Jankowski, Zbigniew J. Jurek  Remarks on restricted Nevanlinna transforms297-307
2822
9. Łukasz Stettner  On general optimal stopping problems using penalty method309-323
4136
10. Adam Jakubowski  Principle of conditioning revisited325-336
4135
11. Jacek Małecki, Grzegorz Serafin  Hitting hyperbolic half-space337-360
4437
12. Krzysztof Michalik, Michał Ryznar  Kelvin transform for ⍺-harmonic functions in regular domains361-376
3127
13. Przemysław Matuła, Michał Seweryn  Weighted averages of random variables and exact weights377-384
3833
14. Mariusz Polak, Tomasz Rolski  A note on speed of convergence to the quasi-stationary distribution385-397
4234
15. Marek Bożejko  Deformed Fock spaces, Hecke operators and monotone Fock space of Muraki399-413
6247
16. Ivan Guo, Marek Rutkowski  A zero-sum competitive multi-player game415-433
4033
17. Elżbieta Ferenstein, Adam Pasternak-Winiarski  On optimal stopping of risk processes with regime switching435-454
3432
18. Adam Paszkiewicz  On characterization of a.s. convergence of all conditionings for sequences of random variables455-462
3936
19. Katarzyna Pichor, Ryszard Rudnicki, Marta Tyran-Kamińska  Stochastic semigroups and their applications to biological models463-494
5854
 


DEMONSTRATIO MATHEMATICA Volume 45, Issue 1 (Mar 2012)

Providing open access for this volume was possible thanks to the financial support of the Ministry of Science and Higher Education of the Republic of Poland, under the agreement 1069/P-DUN/2011.


 
Author(s)TitlePagesFull text#downloads
1. Grzegorz Dymek, Andrzej Walendziak  Fuzzy ideals of pseudo-BCK algebras1-15
204167
2. Marcin Krzywkowski  A lower bound on the double outer-independent domination number of a tree17-23
4842
3. Diego Marques  Fibonomial coefficients at most one away from Fibonacci numbers25-28
8573
4. Claus Haetinger, Shuliang Huang  On θ-centralizers of semiprime rings29-34
830537
5. Anna Mureńko  A generalization of Bernstein-Doetsch theorem35-38
8566
6. A. R. Ahmed, Hnan Darwish, E. A. Elrifai  On subordination for higher-order derivatives of multivalent functions associated with the generalized Srivastava-Attiya operator39-50
8561
7. Mohd Akhlaq, Mumtaz Ahmad Khan  A note on generating functions and summation formulae for Meixner polynomials of several variables51-66
6154
8. Zuomao Yan  Existence of solutions for some nonlinear delay integrodifferential equations with nonlocal initial conditions67-79
6150
9. Lylia Salah Derradji, Abdelkader Moumeni  Global solution of reaction-diffusion system with non diagonal matrix81-93
4140
10. V. Chandrasekar, M. Maria Susai Manuel, R. Pugalarasu, G. Britto Antony Xavier  Theory and application of the generalized difference operator of the n-th kind (Part I)95-106
6753
11. Dan Barbosu, Dan Miclaus, Ovidiu T. Pop  The Voronovskaya type theorem for an extension of Szasz-Mirakjan operators107-115
7563
12. M. B. Dhakne, Kishor D. Kucche  Global existence for abstract nonlinear Volterra-Fredholm functional integrodifferential equation117-127
7041
13. Belmesnaoui Aqzzouz, A. Elbour  The almost Dunford-Pettis properties of semi-compact operators129-142
3830
14. Bhavana Deshpande, Rohit Pathak  Fixed point theorems for noncompatible discontinuous hybrid pairs of mappings on 2- metric spaces143-154
11179
15. Mohamed Ahmed  Some fixed point theorems for multivalued mappings in dislocated quasi-metric spaces155-160
145126
16. Mohammed Hichem Mortad  On the closedness, the self-adjointness and the normality of the product of two unbounded operators161-167
6049
17. J. K. Kohli, Durgesh Kumar  Common fixed point theorems for variants of r-weakly commuting mappings in topologically complete Tychonoff(uniform) spaces169-178
11080
18. S. Bayhan, Alev Kanibir, Ivan L. Reilly  On δ-perfectly continuous functions179-186
11789
19. Miguel Caldas, C. Devamanoharan, Saeid Jafari, S. Pious Missier  On contra ρ-continuous functions and strongly ρ-closed spaces187-202
11981
20. Mohammad Sarsak  b-closed spaces203-214
11898
 


DEMONSTRATIO MATHEMATICA Volume 44, Issue 4 (Dec 2011)
Proceedings of the AAA80 Workshop on General Algebra (2010)
Editors for the Special Issue: Anna Romanowska, Jonathan D. H. Smith

 
Author(s)TitlePagesFull text#downloads
1. Janis Cirulis  Weak relative pseudocomplements in semilattices651-672
115102
2. Joao Pita Costa  On the coset structure of a skew lattice673-692
5849
3. I. Chajda, Guenther Eigenthaler  Polynomially representable semirings693-698
5751
4. Ivan Chuchman, Oleg Gutik  On monoids of injective partial selfmaps almost everywhere the identity699-722
4332
5. Klaus Denecke, Dara Phusanga  Hyper-pseudoformulas and M-solid ordered pseudovarieties723-738
2623
6. Ilinka Dimitrova, Joerg Koppitz  Coregular semigroups of full transformations730-753
3428
7. Sejong Kim, Jimmie Lawson  Smooth Bruck loops, symmetric spaces, and nonassociative vector spaces755-779
4336
8. Agata Pilitowska, Anna B. Romanowska  Embedding modes into semimodules, Part II781-790
4240
9. Agata Pilitowska, Anna B. Romanowska  Embedding modes into semimodules, Part III791-800
3631
10. Friedrich Martin Schneider  Weak homomorphisms between functorial algebras810-818
4740
11. Worakrit Supaporn  Centralizer clones are preserved by category equivalences819-822
3529
12. Jozef Przytycki  Distributivity versus associativity in the homology theory of algebraic structures824-869
9374
 


DEMONSTRATIO MATHEMATICA Volume 44, Issue 3 (Sep 2011)
Proceedings of the AAA80 Workshop on General Algebra (2010)
Editors for the Special Issue: Anna Romanowska, Jonathan D. H. Smith

 
Author(s)TitlePagesFull text#downloads
0. Anna B. Romanowska  Preface445-446
141127
1. Joel D. Berman  Upper bounds on the sizes of finitely generated algebras447-471
6959
2. Manfred Droste, J. K. Truss  The uncountable cofinality of the automorphism group of the countable universal distributive lattice473-479
3027
3. Danica Jakubikova-Studenovska, Maria Petrejcikova, Jozef Pocs  Monounary algebras with same quasiorders or retracts481-496
3431
4. Franco Montagna  An algebraic treatment of imprecise probabilities497-509
4342
5. Yuri Movsisyan, E. Nazari  Transitive modes511-522
6051
6. Agata Pilitowska, Anna B. Romanowska  Embedding modes into semimodules I523-534
4337
7. Agata Pilitowska, Anna Zamojska-Dzienio  Representation of modals535-556
4440
8. Anna B. Romanowska, Michał Stronkowski, Anna Zamojska-Dzienio  Embedding sums of cancellative modes into functorial sums557-569
5545
9. Jonathan D. H. Smith  Modes, modals, and barycentric algebras571-589
4641
10. Sergejs Solovjov  Extended-order algebras as a generalization of posets589-614
5441
11. Edith Mireya Vargas  Maximal and minimal C-monoids615-627
4538
12. Anatoliy Zhuchok  Some semilattice decompositions of dimonoids629-645
4844
 


DEMONSTRATIO MATHEMATICA Volume 44, Issue 2 (Jun 2011)
 
Author(s)TitlePagesFull text#downloads
1. Lucio Berrone, Luis Dieulefait  Finite mappings and the topology of their stable sets201-211
5043
2. Michał Heller, Zdzisław Odrzygóźdź, Leszek Pysiak, Wiesław Sasin  Hopf-Sikorski algebras213-221
6761
3. A. McD. Mercer, Peter Robert Mercer  On the sign of L(f) and its error term when f is an n-convex function223-231
8935
4. Jacek Dziok  A new class of multivalent analytic functions defined by the Hadamard product233-251
10079
5. Virgil Pescar  The univalence of general integral operator Bazilevic253-260
6450
6. Liangpeng Xiong  Some general results and etreme points of p-valently functions with negative coefficients261-272
6858
7. Talat Korpinar, Essin Turhan  Bertrand mate of timelike biharmonic Legendre curves in Lorentzian Heisenberg group Heis3273-283
4036
8. Thomas Ernst  q-analogues of general reduction formulas by Buschman and Srivastava and an important q-operator reminding of MacRobert285-296
4537
9. Zhimin He, Jianhua Shen, Weibing Wang  Positive periodic solutions for second order impulsive differential equations297-316
3631
10. Aneta Sikorska-Nowak  Dynamic equations x(Δm)(t) = f(t,x(t)) on time scales317-333
4338
11. Marek Żołdak  Generalized stability of isometries in p-homogeneous F-spaces335-348
2523
12. Kristaq Kikina, Luljeta Kikina  Fixed points for k mappings on a complete metric space349-357
116102
13. Ajay K. Sharma  Generalized weighted composition operators on the Bergman space359-372
5947
14. Anshu Sharma, S. D. Sharma  Generalized integration operators from Bloch type spaces to weighted BMOA spaces373-390
3633
15. Pablo Alegre  CR-submanifolds of normal Lorentzian Sasakian manifolds391-406
6854
16. C. P. Arya, J. K. Kohli  Upper and lower almost cl-supercontinuous407-421
4942
17. Małgorzata Filipczak, Małgorzata Terepeta  On (Δ2) condition in density-type topologies423-432
3226
18. Adam Piwocki  A new proof of the faithfulness of the Temperley-Lieb representation of B3433-443
3025
 


DEMONSTRATIO MATHEMATICA Volume 44, Issue 1 (Mar 2011)
 
Author(s)TitlePagesFull text#downloads
1. Anna Mućka  Subdirectly irreducible fibered automata, part 21-15
4036
2. Grzegorz Bińczak, Joanna Kaleta  Finite simple monogenic entropic quasigroups with quasi-identity17-27
2724
3. Leszek Pysiak  Imprimitivity theorem for groupoid representations29-48
3935
4. M. Adil Khan, Marek Niezgoda, J. Pečarić  On a refinement of the majorisation type inequality49-57
7457
5. Paulina Szczuka  Maximums of upper semicontinuous strong Świątkowski functions59-65
3028
6. Nasser Tatar, Abderrahmane Zarai  Exponential stability and blow up for a problem with Balakrishnan-Taylor damping67-90
3229
7. Włodzimierz Fechner  On a functional equation motivated by the Lagrange′s identity91-98
4141
8. Mehmet Sengonul  The fuzzy basis of the sequence space ℓP(ℱ)99-104
4538
9. Barnabas Bede, Lucian Coroianu, Sorin G. Gal  Approximation by truncated Favard-Szasz-Mirakjan operator of max-product kind105-122
6452
10. Zoltan Finta  Quantitative estimates for a q-analogue of the Bernstein operator123-130
3733
11. Belmesnaoui Aqzzouz, A. Elbour  Semi-compactness of almost Dunford-Pettis operators on Banach lattices131-141
2625
12. Stanislav Shkarin  Mixing operators on spaces with weak topology143-150
3333
13. Mohamed Akkouchi  Common fixed points for weakly compatible maps satisfying implicit relations without continuity151-158
6962
14. Miguel Caldas, Erdal Ekici, Saeid Jafari, Raja Mohammad Latif  On weakly BR-open functions and their characterization in topological spaces159-168
5648
15. Zbigniew Duszyński  On some classes of sets in extremally disconnected spaces169-180
5347
16. Marian Przemski  On continuous convergence of nets of multifunctions181-200
4440
 


DEMONSTRATIO MATHEMATICA Volume 43, Issue 4 (Dec 2010)
 
Author(s)TitlePagesFull text#downloads
1. Janis Cirulis  Subtraction-like operations in nearsemilattices725-738
4139
2. Anna Mućka  Subdirectly irreducible fibered automata739-753
2120
3. Ewa Pawelec, Alicja Smoktunowicz, Marek Szularz  An inverse structured perturbation problem for the linear system ATAx=b755-763
4035
4. Janusz Matkowski  Generalizations of Lagrange and Cauchy mean-value theorems765-774
7262
5. Said Abbas, Mouffak Benchohra  Impulsive partial hyperbolic differential inclusions of fractional order775-797
2823
6. Luminita-Ioana Cotirla  Properties of analytic functions defined by an integral operator799-803
5346
7. J. K. Prajapat, R. K. Raina  New sufficient conditions for starlikeness of analytic functions involving a fractional differintegral operator805-813
5854
8. Ioana Tise  A fixed point approach for functional-integral set equations815-826
5044
9. Sever Dragomir, H. B. Thompson  A two points Taylor′s formula for the generalized Riemann integral827-840
4644
10. George A. Anastassiou, Ali Aral  On Gauss-Weierstrass type integral operators841-849
4234
11. Lahcene Mezrag  Characterization of lr-dominated m-linear operators851-863
1815
12. Nguyen Thi Thu Huyen, Nguyen Minh Tuan  On the solvability of systems of linear equations on commutative semigroup865-876
1917
13. Gurucharan. S. Saluja  Convergence theorems of a family of uniformly (L,α)-Lipschitz asymptotically quasi-nonexpansive type mappings877-886
4035
14. Ram Shankar Gupta, Pradeep Kumar Pandey, A. Sharfuddin  B. Y. Chen′s inequalities for bi-slant submanifolds in Kenmotsu space forms887-898
3734
15. Paulina Szczuka  The connectedness of arithmetic progressions in Furstenberg′s, Golomb′s, and Kirch′s topologies899-909
3327
16. Mohammad Sarsak  On Bi-metacompact spaces911-921
3227
17. Mohamed Akkouchi, Valeriu Popa  Well-posedness of fixed point problem for mappings satisfying an implicit relation923-929
4839
18. Zbigniew Bartoszewski  Remarks on the convergence of an iterative method of solution of generalized least squares problem931-938
2925
 


DEMONSTRATIO MATHEMATICA Volume 43, Issue 3 (Sep 2010)
 
Author(s)TitlePagesFull text#downloads
1. Andrzej Walendziak, Magdalena Wojciechowska  Bipartite pseudo BL-algebras487-496
4741
2. Mona Khare, Akhilesh Kumar Singh  The range of non-atomic measures on effect algebras497-510
2625
3. P. Penner, Shelly Wismath  Equational bases for P-compatible identities511-518
1815
4. Klaus Denecke, Somsak Lekkoksung  Nd-hypersubstitutions of many-sorted algebras519-537
1715
5. Władysław Wilczyński  On points of discontinuity of I-approximately continuous functions539-544
3432
6. Leopold Koczan, Magda Sobczak-Kneć, Paweł Zaprawa  On functions convex in the direction of the imaginary axis with real coefficients545-559
2826
7. Gerd Herzog, Roland Lemmert  On coupled first and second order boundary value problems in ordered Banach spaces561-574
2518
8. Sui Sun Cheng, Gen-Qiang Wang, Kun-wen Wen  Oscillations of a higher order nonlinear differential equation with impulses575-603
3529
9. Nguyen Thanh Long, Le Thi Phuong Ngoc, Le Xuan Truong  High-order iterative methods for a nonlinear Kirchhoff wave equation605-634
2220
10. Janusz Brzdęk  A note on stability of the Popoviciu functional equation on restricted domain635-641
4328
11. M. B. Dhakne, Haribhau Laxman Tidke  Existence and uniqueness of mild and strong solutions of nonlinear Volterra integrodifferential equation in Banach spaces643-652
4737
12. Jean-Paul Penot  A short proof of the Separable Reduction Theorem653-663
3124
13. Sever Dragomir  Some inequalities for the maximum of the spectrum for the real part of two operators product in Hilbert spaces665-680
3835
14. Nikhat Bano, Nazir Ahmad Mir  Strong convergence of averaged iteration for asymptotically non-expansive non-self mappings681-690
2423
15. Rakesh Kumar, R. K. Nagaich, Rachna Rani  Some properties of lightlike submanifolds of semi-Riemannian manifolds691-701
3027
16. Jeetendra Aggarwal, J. K. Kohli, Davinder Singh  R-supercontinuous functions703-723
6047
 


DEMONSTRATIO MATHEMATICA Volume 43, Issue 2 (Jun 2010)
Proceedings of Polish-Japanese Singularity Theory Symposia 2007 and 2009
Editors for the Special Issue: Goo Ishikawa, Shyuichi Izumiya, Stanisław Janeczko

 
Author(s)TitlePagesFull text#downloads
0. Goo Ishikawa, Shyuichi Izumiya, Stanisław Janeczko  Preface233-234
6031
1. Janusz Adamus  Effective regularity criteria for analytic mappings235-262
2523
2. Tadashi Ashikaga  Local signature of fibered complex surfaces via moduli and monodromy263-276
1715
3. Michał Farnik, Zbigniew Jelonek  A complete variety with infinitely many maximal quasi-projective open subsets277-284
2423
4. Satoshi Koike, Adam Parusiński  Some questions on the Fukui numerical set for complex function germs285-302
2220
5. Janusz Gwoździewicz, Andrzej Lenarcik, Arkadiusz Płoski  Polar invariants of plane curve singularities: intercestion theoretical approach303-323
2119
6. Tomohiro Okuma  The geometric genus, The Casson invariant conjecture and splice type singularities325-338
1515
7. Tadashi Tomaru  Complex surface singularities and degenerations of compact complex curves339-359
1717
8. Justyna Walewska  The second jump of Milnor numbers361-374
2925
9. M. Van Manen, D. Siersma  Medial axis and a moment map375-385
2216
10. Sachiko Chino, Shyuichi Izumiya  Lightlike developables in Minkowski 3-space387-399
3937
11. Masaki Kasedou  Spacelike submanifolds in de Sitter space401-418
3431
12. Tomonori Fukunaga  On homotopy classification of phrases and its application419-432
22
13. Mahito Kobayashi  A survey on polygonal portraits of manifolds433-445
1413
14. Takashi Nishimura  Singularities of pedal curves produced by singular dual curve germs in Sn447-459
1817
15. Leon Kushner, Marcelo Jose Saia  Geometry of pre quasi homogeneous polynomials of type (1/2,1/4)461-471
2719
16. Kazuhiro Shibuya  A set of integral elements of higher order jet spaces473-486
1917
 


DEMONSTRATIO MATHEMATICA Volume 43, Issue 1 (Mar 2010)
 
Author(s)TitlePagesFull text#downloads
1. Sachindranath Jayaraman, K. C. Sivakumar  Matrix interval monotonicity1-10
4136
2. Agnieszka Kowalik, Ilona Michalik  Quasi-simplicity of some homeomorphism and diffeomorphism groups11-19
1514
3. Artur Bartoszewicz, Małgorzata Filipczak, Tadeusz Poreda  On density with respect to equivalent measures21-28
2020
4. Grazyna Majchrowska, Christophoros Mouratides  Blaschke products, α-curves and Qp spaces.29-38
2524
5. Mohamed K. Aouf, S. M. Madian, Adela Moustafa, A. Shamandy  Certain class of p-valent functions associated with the Wright generalized hypergeometric function39-54
5044
6. Shamkant Khairnar, Meena More  Properties of certain classes of analytic functions defined by Srivastava-Attiya operator55-79
5042
7. Barbara Sobek  Pexider equation on a restricted domain81-88
3428
8. Irena Fidytek  Some properties of the curves with even exponents89-96
1818
9. Mohamed Akkouchi, M. H. Lalaoui Rhali  Solutions of some functional equations related to the determinant of certains matrices97-106
2525
10. K. N. Arora, Devendra Kumar  Growth and approximation properties of generalized axisymmetric potentials107-116
2019
11. Włodzimierz Łenski, Bogdan Szal  On the degree of strong approximation of functions and conjugate117-128
2926
12. Sever Dragomir  Inequalities for the numerical radius in united normed algebras129-137
1919
13. Feyzi Basar, Ozer Talo  Certain spaces of sequences of fuzzy numbers defined by a modulus function139-149
4133
14. Tayyab Kamran, Quanita Kiran  Generalized contractions on spaces with two metrics151-160
4538
15. Harish Chandra, Pradeep Kumar  Ascent and descent of composition operators on lp spaces161-165
2724
16. Hanna Makowiecka  On some operations on finite affine planes applied to the theory of regular configurations167-185
1917
17. Grzegorz Sójka  Determination of convex bodies by -∞-chord functions187-202
2222
18. Takashi Noiri, Valeriu Popa  The unified theory of certain types of generalizations of Lindelof spaces203-212
3735
19. Danuta Jaruszewska-Walczak  Difference methods for infinite systems of quasilinear parabolic functional differential equations213-230
2322
 


DEMONSTRATIO MATHEMATICA Volume 42, Issue 4 (Dec 2009)
 
Author(s)TitlePagesFull text#downloads
1. Agnieszka Goerlich  Planar packing of cycles and unicyclic graphs673-679
3528
2. Józef Kalinowski  On preservers of singularity and nonsingularity of matrices681-685
1816
3. M. S. Metwally, M. T. Mohamed, Ayman Shehata  Generalizations of two index two variable Hermite Matrix Polynomials687-701
2622
4. Jakub Bielawski, Jacek Tabor  An embedding theorem for unbounded convex sets in a Banach space703-709
2321
5. Magdalena Gregorczyk  Univalent harmonic mappings with two preassigned values711-722
3023
6. Aurelian Cernea  On a boundary value problem for a third order differential inclusion723-730
2018
7. D. Anjaneyulu, G. S. Kumar, P. N. Lakshmi, M. S. N. Murty  On Ψ-instability of non-linear matrix Lyapunov systems731-743
2521
8. Akila Yechoui  On an non-local parabolic problem745-755
1915
9. Przemysław Głowiński, Andrzej Łada  Asymptotic stability of solutions to the equations of linear elasticity and thermoelasticity in viscoporous media757-779
2924
10. Damian Słota, Roman Wituła  The convergence classes of divergent permutations781-796
2515
11. Hemant Kumar Nashine  Common fixed point and best approximation for Banach operator pairs in non-starshaped domain797-807
3431
12. K. Chandrasekhara Rao  Some rate spaces809-816
3127
13. Belmesnaoui Aqzzouz, Khalid Bouras  Some properties of positive weak Dunford-Pettis operators on Banach lattices817-823
1916
14. Monica Boriceanu  Fixed point theory on spaces with vector-valued b-metrics825-835
4741
15. Servet Kutukcu, Sushil Sharma  A common fixed point theorem in non-archimedean Menger PM-spaces837-849
4332
16. Ewa Fabińska  Covering a reduced polygon by a disk851-855
1917
17. Bayram Sahin  Contact horizontally conformal submersions857-868
2923
18. Uday Chand De, Kalam Gazi  On almost pseudo conformally symmetric manifolds869-886
2827
19. Mujahid Abbas, D. O’Regan  Necessary and sufficient conditions for common fixedpoint theorems in fuzzy metric spaces887-900
4736
20. Artur Bator, Wiesław Zięba  Expectation in metric spaces and characterizations of Banach spaces901-908
3429
 


DEMONSTRATIO MATHEMATICA Volume 42, Issue 3 (Sep 2009)
 
Author(s)TitlePagesFull text#downloads
1. Andrzej Walendziak, Magdalena Wojciechowska  Semisimple and semilocal pseudo BL-algebras453-466
4540
2. Basudeb Dhara  Derivations with Engel conditions on multilinear polynomials in prime rings467-478
3727
3. Zbigniew J. Jakubowski, Agnieszka Sibelska  On classes of meromorphic and complex harmonic mappings with a pole at the infinity generated by some analytic conditions479-489
3931
4. Edyta Leś-Bomba, Piotr Liczberski  New properties of some families of holomorphic functions of several complex variables491-503
3229
5. Mukesh Agnihotri, V. B. L. Chaurasia  The product of generalized polynomials sets pertaining to a class of convolution integral equations505-512
1816
6. Teresa Winiarska  Second order evolution problem with dependent on t and not densely defined operators513-520
1918
7. Piotr Majcher, Sushil Sharma  Application of measures of weak noncompactness to a nonlocal Darboux problem521-531
2624
8. Eliza Jabłońska  Bounded solutions of a generalization of the Gołąb-Schinzel equation533-547
2120
9. Basak Karpuz  A remark on [Demonstratio Math., XLI (3) 2008]549-551
3332
10. Prerna Maheshwari  Direct theorems for modified Baskakov operators in Lp-spaces553-565
3628
11. Ewa Iwaniec  Characterization of asymptotical expansions of copulas by the use of homogeneous functions567-579
1514
12. Gurucharan. S. Saluja  Approximation of common random fixed point for a finite family of nonself asymptotically nonexpansive random mappings581-598
1814
13. M. O. Olatinwo  A fixed point theorem for multi-valued weakly Picard operators in b-metric space599-606
3633
14. Ajay K. Sharma  Volterra composition operators between weighted Bergman-Nevanlinna and Bloch-type spaces607-618
2119
15. Giorgio Donati  A quadratic transformation of the three-dimensional space of all conics through two points of a projective plane619-625
1110
16. Krzysztof Witczyński  Generalized Pappus Theorem627-630
4133
17. Guanghan Li, Jing Mao  Entire graphs under a general flow631-640
2523
18. Tshidibi Batubenge, Hermenegilde Tshilombo  Topologies and smooth maps on initial and final objects in the category of Froelicher spaces641-655
1312
19. Wlodzimierz Bryc  Free exponential families as kernel families657-672
436294
 


DEMONSTRATIO MATHEMATICA Volume 42, Issue 2 (Jun 2009)
 
Author(s)TitlePagesFull text#downloads
1. Christopher Bay, Amber Lembcke, Steven Schlicker  Correction to “When lines go bad in hyperspace”237-240
2320
2. I. Chajda, Helmut Laenger  Quantifiers on lattices with an antitone involution241-245
2423
3. Zvonko Cerin  Sums of products of generalized Fibonacci and Lucas numbers247-258
4039
4. Alexander Patkowski  On some partitions where even parts do not repeat259-263
1614
5. Damian Słota, Roman Wituła  Contributions to the Erdös’ conjecture on arithmetic progressions265-268
2824
6. Grzegorz Bińczak, Joanna Kaleta  Cyclic entropic quasigroups269-289
2018
7. George A. Anastassiou  Poincare and Sobolev type inequalities for Widder derivatives283-296
2319
8. Yu Miao  Several analogues of Hilbert′s inequalities297-303
4637
9. Bogdan Szal  Application of the MRBV S classes to embedding relations of the Besov classes305-324
2823
10. Jing Liu  Existence and global exponential stability of periodic solution of high-order Cohen-Grossberg neural network with impulses325-339
2119
11. Baburao Pachpatte  New integral and finite difference inequalities in three variables341-351
3328
12. Mohsen Timoumi  Subharmonic and multiple periodic solutions for Hamiltonian systems with local partial sublinear nonlinearity353-372
1612
13. Sui Sun Cheng, Wenrong Li  A Picard theorem for iterative differential equations373-382
2319
14. Zafer Ercan  A characterization of u-uniformly completeness of Riesz spaces in terms of statistical u-uniformly pre-completeness383-387
1815
15. Małgorzata Prażmowska  On some regular multi-Veblen configurations, the geometry of combinatorial quasi Grassmannians389-404
2116
16. Nilgun Sonmez  Some features in connection with triangles in the Poincare upper half plane405-411
1715
17. Waldemar Cieślak, Józef Wołowik  g-chordal curves413-424
2723
18. Essin Turhan  Characterize on the Heisenberg group with left invariant lorentzian metric425-430
2217
19. Lech Pasicki  Ascoli′s theorems431-436
4239
20. Włodzimierz Mikulski, J. Tomas  Reduction for natural operators on projectable connections437-441
1514
21. Tomasz Tkaliński  Approximation of market valuations on the set of risk measures443-454
1916
 


DEMONSTRATIO MATHEMATICA Volume 42, Issue 1 (Mar 2009)
Dedicated to prof. Maciej Mączyński and Mrs. Maria Mączyńska
 
Author(s)TitlePagesFull text#downloads
0.   Preface1-2
2220
1. Gabriele Ricci  Sameness between based universal algebras3-22
2421
2. D. Doan, B. Kivunge, J. J. Poole, Jonathan D. H. Smith, T. Sykes, M. Teplitskiy  Partial semigroups and primality indicators in the fractal generation of binomial coefficients to a prime square modulus23-39
2319
3. Waldemar Sieg  Maximal classes for the family of quasi-continuous functions with closed graph41-45
2424
4. Ewa Strońska  On E-continuity and E-minimality of multifunctions of two variables47-52
2424
5. Jing Dong, Jianhua Shen  Existence of positive solutions to BVPs of higher order delay differential equations53-64
2120
6. Stanisław Domachowski  Local bounds and existence of solutions to non-convex differential inclusions65-74
1915
7. M. Galewski  Existence of bounded solutions for fourth order Dirichlet problems with convex-concave nonlinearity75-81
2220
8. Prem Nath, Dhiraj Kumar Singh  On a sum form functional equation related to entropies and some moments of a discrete random variable83-96
2321
9. Mircea D. Farcas, Ovidiu T. Pop  About the bivariate operators of Durrmeyer-type97-107
3028
10. Ali Aral, Vijay Gupta  On q-Baskakov type operators109-122
3936
11. Marek Żołdak  On the Mazur-Ulam theorem in metric groups123-130
3231
12. Poom Kumam, Somyot Plubtieng  Some random fixed point theorems for random asymptotically regular operators131-141
3231
13. H. K. Pathak, Rosana Rodriguez-Lopez  Some results on common fixed points for weakly compatible mappings satisfying Altman integral type contraction143-162
4541
14. Pratulananda Das, Lakshmi Kanta Dey  Porosity of certain classes of operators in generalized metric spaces163-174
2421
15. Goknur Aykan, Seyit Temir  Convergence of implicit iterative process for finite family of I-nonexpansive mappings175-184
1919
16. Nilgun Sonmez  Division point in the Poincare upper half plane185-192
1715
17. A. Al-Omari, Takashi Noiri, Mohd. Salmi Md. Noorani  Weak forms of open and closed functions via b-θ-open sets193-203
3734
18. Marian Przemski  Cluster sets and related properties of multifunctions205-219
2826
19. J. K. Kohli, Davinder Singh  δ-perfectly continuous functions221-231
5041
20. Włodzimierz Mikulski  Riemannian vector bundles have no canonical linear connections233-236
2320
 


DEMONSTRATIO MATHEMATICA Volume 41, Issue 4 (Dec 2008)
 
Author(s)TitlePagesFull text#downloads
1. P. Penner, Shelly Wismath  Equational bases for k-normal identities733-742
2727
2. Gabriele Ricci  Transformations between Menger systems743-762
2017
3. Shakir Ali, Mohammad Ashraf  On left multipliers and the commutativity of prime rings763-771
5139
4. Joso Vukman  On (m,n)-Jordan derivations and commutativity of prime groups773-778
4840
5. A. O. Mostafa  On partial sums of certain analytic functions779-789
3634
6. H. E. Darwish  On a subclass of uniformly convex functions with fixed second coefficient791-803
3731
7. Nguyen Van Mau, Nguyen Minh Tuan  On the criteria for initial operators possessing M(c)-property and generalized (c)-property805-811
1414
8. V. B. L. Chaurasia, Hari Singh Parihar  Certain sufficiency conditions on Fox–Wright functions813-822
2121
9. Adam Lecko, Millenia Lecko, Teruo Yaguchi  Subclasses of typically-real functions defined by Ruscheweyh derivative823-832
2726
10. Magda Sobczak-Kneć  On typically real functions which omit two conjugated values833-844
2622
11. Josef Rebenda  Asymptotic behaviour of real two-dimensional differential system with a finite number of constant delays845-857
2020
12. Janusz Brzdęk  On solutions of a generalization of the Reynolds functional equation859-868
1616
13. Indu Bala, Vinod K. Bhardwaj  Strong invariant A-summability with respect to a sequence of modulus functions in a seminormed space869-877
2523
14. Deepak Kumar Dubey, V. K. Jain  Rate of approximation for integrated Szasz-Mirakyan operators879-886
3028
15. Waad Sulaiman  Notes on integral inequalities887-894
7766
16. A. A. Abdel Hakim, R. A. Rashwan  Generalized three-step iteration schemes and common fixed points of three asymptotically quasi-nonexpansive mappings895-908
2524
17. Gerd Herzog, Christoph Schmoeger  A note on Gateaux differentials of Hermitian elements in Banach algebras909-913
2016
18. Jaya Upreti  Complete lift of Fa(K,1) structure in the tangent bundle915-920
1817
19. K. K. Dube, S. Kumar  CR-submanifolds of a nearly trans-hyperbolic Sasakian manifold921-929
3431
20. Kazim Ilarslan, Emilija Nesovic  Some characterizations of osculating curves in the euclidean spaces931-939
3225
21. Tshidibi Batubenge, Wiesław Sasin  An approach to Hamiltonian mechanics on glued symplectic pseudomanifolds941-960
2017
22. F. Allahabi, Lufti N. Kalantan  On almost normality961-968
5655
23. Włodzimierz Mikulski  On naturality of the Legendre operator969-973
2220
 


DEMONSTRATIO MATHEMATICA Volume 41, Issue 3 (Sep 2008)
 
Author(s)TitlePagesFull text#downloads
1. I. Chajda, Miroslav Kolarik, Helmut Laenger  Characterizations of posets via weak states491-496
7465
2. Chang Bum Kim, Hee Sik Kim  On BG-algebras497-505
7362
3. Soni Gupta, Mona Khare  Relations between various continuity concepts in effect algebras507-518
2120
4. Józef Kalinowski  On preservers of determinant over a field519-524
2424
5. Ajda Fosner, Maja Fosner, Joso Vukman  An identity with derivations on rings and Banach algebras525-530
4337
6. V. B. L. Chaurasia, S. C. Pandey  Unified elliptic-type integrals and asymptotic formulas531-541
2619
7. Eduard G. Kiryatskii  Distortion theorems in the class Kn(D)543-549
2019
8. G. Murugusundaramoorthy, R. K. Raina  On a certain class of analytic functions associated with a convolution structure551-559
3837
9. Mohamed K. Aouf  Neighbourhoods of certain p-valently analytic functions defined by using Salagean operator561-570
4443
10. Jolanta Brandys  Strong maximum principles for infinite systems of parabolic differential-functional inequalities with nonstandard initial inequalities with integrals571-581
2522
11. Eliza Jabłońska  One–to–one solutions of a generalized Gołąb-Schinzel equation583-588
3635
12. Y. Bolat  Oscillation criteria for second-order functional difference equation with neutral terms615-625
4332
13. Wolfgang Prager, Jens Schwaiger  Polynomials in additive functions and generalized polynomials589-613
5439
14. Bianca Satco  Global solutions for Volterra ordinary and retarded integral equations627-637
3834
15. D. Comanescu, Sever Dragomir  On the Torricellian point in inner product spaces639-650
3330
16. B. L. Malger, D. R. Sahu, S. C. Shrivastava  Approximation of common fixed points of a family of asymptotically quasi-nonexpansive mappings651-659
3834
17. Bruno de Malafosse, Ali Fares  Spectra of the operator of the first difference in sα, s0α, s(c)α and lp(α) (1 ≤ p < ∞ ) and application to matrix transformations661-676
3935
18. Uday Chand De, A. Sarkar  On three-dimensional locally ϕ-recurrent quasi-Sasakian manifolds677-684
3534
19. Takashi Noiri, Valeriu Popa  On some forms of weakly continuous functions in bitopological spaces685-700
4440
20. Jan Kurek, Włodzimierz Mikulski  The natural affinors on the r-th order frame bundle701-704
2827
21. Marcin Dudziński, Konrad Furmańczyk  On the almost sure central limit theorems in the joint version for the maxima and minima of some random variables705-722
3633
22. Nazir Ahmad Mir, Arif Rafiq, Fiza Zafar  A generalized Ostrowski type inequality for a random variable whose probability density function belongs to L[a,b]723-732
158140