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Author ID: czerwik.stefan Recent zbMATH articles by "Czerwik, Stefan"
Published as: Czerwik, Stefan; Czerwik, S.; Czerwik, St.
Documents Indexed: 75 Publications since 1968, including 1 Book
Reviewing Activity: 162 Reviews
Co-Authors: 11 Co-Authors with 25 Joint Publications
581 Co-Co-Authors
all top 5

Serials

7 Annales Polonici Mathematici
5 Aequationes Mathematicae
3 Annales Societatis Mathematicae Polonae
2 Bulletin Mathématique de la Société des Sciences Mathématiques de la République Socialiste de Roumanie. Nouvelle Série
2 Demonstratio Mathematica
2 Publicationes Mathematicae
2 Journal of Natural & Physical Sciences
2 Glasnik Matematički. Serija III
2 Nonlinear Functional Analysis and Applications
2 Bulletin de l’Académie Polonaise des Sciences, Série des Sciences Mathématiques, Astronomiques et Physiques
2 Matematichki Vesnik. New Series
2 Asian-European Journal of Mathematics
1 Journal of Mathematical Analysis and Applications
1 Periodica Mathematica Hungarica
1 Revue Roumaine de Mathématiques Pures et Appliquées
1 Abhandlungen aus dem Mathematischen Seminar der Universität Hamburg
1 Colloquium Mathematicum
1 Funkcialaj Ekvacioj. Serio Internacia
1 Indian Journal of Mathematics
1 Mathématica – Revue d’Analyse Numérique et de Théorie de l’Approximation. Mathématica
1 Proceedings of the American Mathematical Society
1 Publications de l’Institut Mathématique. Nouvelle Série
1 Comptes Rendus Mathématiques de l’Académie des Sciences
1 Bulletin of the Korean Mathematical Society
1 Atti del Seminario Matematico e Fisico dell’Università di Modena
1 Acta Mathematica et Informatica Universitatis Ostraviensis
1 Analele Universității din Timișoara. Seria Matematică-Informatică
1 Tamsui Oxford Journal of Mathematical Sciences
1 Fixed Point Theory
1 The Australian Journal of Mathematical Analysis and Applications
1 Banach Journal of Mathematical Analysis
1 Mathematica
1 Zeszyty Naukowe Uniwersytetu Jagiellońskiego. Prace Matematyczne
1 Journal of Function Spaces

Publications by Year

Citations contained in zbMATH Open

42 Publications have been cited 1,526 times in 1,148 Documents Cited by Year
Contraction mappings in \(b\)-metric spaces. Zbl 0849.54036
Czerwik, S.
490
1993
Functional equations and inequalities in several variables. Zbl 1011.39019
Czerwik, Stefan
266
2002
On the stability of the quadratic mapping in normed spaces. Zbl 0779.39003
Czerwik, St.
265
1992
Nonlinear set-valued contraction mappings in \(b\)-metric spaces. Zbl 0920.47050
Czerwik, S.
254
1998
\((\alpha, \psi)\)-Meir-Keeler contraction mappings in generalized \(b\)-metric spaces. Zbl 1398.54074
Karapinar, Erdal; Czerwik, Stefan; Aydi, Hassen
43
2018
Round-off stability of iteration procedures for operators in \(b\)-metric spaces. Zbl 0968.54031
Czerwik, Stefan; Dlutek, Krzysztof; Singh, S. L.
34
1997
Ulam-Hyers-Rassias stability of functional equations. Zbl 1382.39036
Czerwik, Stefan; Król, Krzysztof
34
2009
Coincidences and fixed points of hybrid contractions. Zbl 1175.54063
Singh, Shyam Lal; Czerwik, Stefan; Król, Krzysztof; Singh, Abha
22
2008
The stability of the quadratic functional equation. Zbl 0844.39008
Czerwik, Stefan
17
1994
Stability of the quadratic functional equation in Lipschitz spaces. Zbl 1052.39030
Czerwik, S.; Dłutek, K.
12
2004
Round-off stability of iteration procedures for set-valued operators in \(b\)-metric spaces. Zbl 1034.47018
Czerwik, Stefan; Dlutek, Krzysztof; Singh, S. L.
9
2001
On the stability of the quadratic functional equation in topological spaces. Zbl 1130.39021
Adam, M.; Czerwik, S.
7
2007
The existence of global solutions of a functional-differential equation. Zbl 0356.34077
Czerwik, S.
6
1976
A fixed point theorem for a system of multivalued transformations. Zbl 0336.54046
Czerwik, S.
6
1976
Fixed point theorems in generalized b-metric spaces. Zbl 1402.54036
Aydi, Hassen; Czerwik, Stefan
5
2018
Solutions of a system of functional equations in special class functions. Zbl 0361.39001
Czerwik, S.
4
1976
On the stability of the homogeneous mapping. Zbl 0795.39006
Czerwik, Stefan
4
1992
On the global existence of solutions of a functional-differential equation. Zbl 0322.34050
Czerwik, Stefan
4
1975
Superstability of the equation of quadratic functionals in \(L^p\)-spaces. Zbl 1062.39030
Czerwik, Stefan; Dłutek, Krzysztof
4
2002
Fixed point theorems for a system of transformations in generalized metric spaces. Zbl 1332.54207
Czerwik, Stefan; Król, Krzysztof
3
2015
Mulvi-valued contraction mappings in metric spaces. Zbl 0385.54027
Czerwik, Stefan
3
1977
Quadratic difference operators in \(L^p\)-spaces. Zbl 1058.39019
Czerwik, Stefan; Dłutek, Krzysztof
3
2004
On the continuous dependence of solutions of some functional equations on given functions. Zbl 0216.13104
Czerwik, S.
3
1971
Fixed point theorems in generalized metric spaces. Zbl 06770298
Czerwik, Stefan; Król, Krzysztof
3
2017
The completion of generalized b-metric spaces and fixed points. Zbl 1456.54012
Cobzaş, Ştefan; Czerwik, Stefan
3
2020
Special solutions of a functional equation. Zbl 0308.39002
Czerwik, S.
2
1975
Cauchy and Pexider operators in some function spaces. Zbl 1059.39012
Czerwik, Stefan; Dłutek, Krzysztof
2
2003
A general Baker superstability criterion for the D’Alembert functional equation. Zbl 1135.39012
Czerwik, Stefan; Przybyła, Maciej
2
2007
Ulam stability of functional equations. Zbl 1175.39017
Czerwik, Stefan; Król, Krzysztof
2
2009
Some inequalities, characteristic roots of a matrix and Edelstein’s fixed point theorem. Zbl 0347.15006
Czerwik, S.
2
1976
Random fixed point theorems for a system of multivalued mappings. Zbl 0595.47042
Czerwik, S.
1
1985
Generalization of Edelstein’s fixed point theorem. Zbl 0351.54038
Czerwik, Stefan
1
1976
On a differential equation with deviating argument. Zbl 0352.34055
Czerwik, S.
1
1977
Remarks on some fixed point theorems. Zbl 0366.47024
Czerwik, S.
1
1977
Existence, uniqueness and continuous dependence on the parameter of solutions of a system of differential equations with deviating argument. Zbl 0367.34045
Czerwik, S.
1
1977
On the differentiability of solutions of a functional equation with respect to a parameter. Zbl 0221.39003
Czerwik, S.
1
1971
Quadratic operators and quadratic functional equation. Zbl 1248.39020
Adam, M.; Czerwik, S.
1
2012
Completion of generalized metric spaces. Zbl 1356.54033
Czerwik, Stefan; Król, Krzysztof
1
2016
Cantor, Banach and Baire theorems in generalized metric spaces. Zbl 1370.54001
Czerwik, Stefan; Król, Krzysztof
1
2016
Generalized Minkowski functionals. Zbl 1381.46011
Czerwik, Stefan; Król, Krzysztof
1
2016
Continuous solutions of a system of functional inequalities. Zbl 0542.39003
Czerwik, S.
1
1984
On the unbounded and continuous solutions of a system of functional equations. Zbl 0324.39002
Czerwik, Stefan
1
1975
The completion of generalized b-metric spaces and fixed points. Zbl 1456.54012
Cobzaş, Ştefan; Czerwik, Stefan
3
2020
\((\alpha, \psi)\)-Meir-Keeler contraction mappings in generalized \(b\)-metric spaces. Zbl 1398.54074
Karapinar, Erdal; Czerwik, Stefan; Aydi, Hassen
43
2018
Fixed point theorems in generalized b-metric spaces. Zbl 1402.54036
Aydi, Hassen; Czerwik, Stefan
5
2018
Fixed point theorems in generalized metric spaces. Zbl 06770298
Czerwik, Stefan; Król, Krzysztof
3
2017
Completion of generalized metric spaces. Zbl 1356.54033
Czerwik, Stefan; Król, Krzysztof
1
2016
Cantor, Banach and Baire theorems in generalized metric spaces. Zbl 1370.54001
Czerwik, Stefan; Król, Krzysztof
1
2016
Generalized Minkowski functionals. Zbl 1381.46011
Czerwik, Stefan; Król, Krzysztof
1
2016
Fixed point theorems for a system of transformations in generalized metric spaces. Zbl 1332.54207
Czerwik, Stefan; Król, Krzysztof
3
2015
Quadratic operators and quadratic functional equation. Zbl 1248.39020
Adam, M.; Czerwik, S.
1
2012
Ulam-Hyers-Rassias stability of functional equations. Zbl 1382.39036
Czerwik, Stefan; Król, Krzysztof
34
2009
Ulam stability of functional equations. Zbl 1175.39017
Czerwik, Stefan; Król, Krzysztof
2
2009
Coincidences and fixed points of hybrid contractions. Zbl 1175.54063
Singh, Shyam Lal; Czerwik, Stefan; Król, Krzysztof; Singh, Abha
22
2008
On the stability of the quadratic functional equation in topological spaces. Zbl 1130.39021
Adam, M.; Czerwik, S.
7
2007
A general Baker superstability criterion for the D’Alembert functional equation. Zbl 1135.39012
Czerwik, Stefan; Przybyła, Maciej
2
2007
Stability of the quadratic functional equation in Lipschitz spaces. Zbl 1052.39030
Czerwik, S.; Dłutek, K.
12
2004
Quadratic difference operators in \(L^p\)-spaces. Zbl 1058.39019
Czerwik, Stefan; Dłutek, Krzysztof
3
2004
Cauchy and Pexider operators in some function spaces. Zbl 1059.39012
Czerwik, Stefan; Dłutek, Krzysztof
2
2003
Functional equations and inequalities in several variables. Zbl 1011.39019
Czerwik, Stefan
266
2002
Superstability of the equation of quadratic functionals in \(L^p\)-spaces. Zbl 1062.39030
Czerwik, Stefan; Dłutek, Krzysztof
4
2002
Round-off stability of iteration procedures for set-valued operators in \(b\)-metric spaces. Zbl 1034.47018
Czerwik, Stefan; Dlutek, Krzysztof; Singh, S. L.
9
2001
Nonlinear set-valued contraction mappings in \(b\)-metric spaces. Zbl 0920.47050
Czerwik, S.
254
1998
Round-off stability of iteration procedures for operators in \(b\)-metric spaces. Zbl 0968.54031
Czerwik, Stefan; Dlutek, Krzysztof; Singh, S. L.
34
1997
The stability of the quadratic functional equation. Zbl 0844.39008
Czerwik, Stefan
17
1994
Contraction mappings in \(b\)-metric spaces. Zbl 0849.54036
Czerwik, S.
490
1993
On the stability of the quadratic mapping in normed spaces. Zbl 0779.39003
Czerwik, St.
265
1992
On the stability of the homogeneous mapping. Zbl 0795.39006
Czerwik, Stefan
4
1992
Random fixed point theorems for a system of multivalued mappings. Zbl 0595.47042
Czerwik, S.
1
1985
Continuous solutions of a system of functional inequalities. Zbl 0542.39003
Czerwik, S.
1
1984
Mulvi-valued contraction mappings in metric spaces. Zbl 0385.54027
Czerwik, Stefan
3
1977
On a differential equation with deviating argument. Zbl 0352.34055
Czerwik, S.
1
1977
Remarks on some fixed point theorems. Zbl 0366.47024
Czerwik, S.
1
1977
Existence, uniqueness and continuous dependence on the parameter of solutions of a system of differential equations with deviating argument. Zbl 0367.34045
Czerwik, S.
1
1977
The existence of global solutions of a functional-differential equation. Zbl 0356.34077
Czerwik, S.
6
1976
A fixed point theorem for a system of multivalued transformations. Zbl 0336.54046
Czerwik, S.
6
1976
Solutions of a system of functional equations in special class functions. Zbl 0361.39001
Czerwik, S.
4
1976
Some inequalities, characteristic roots of a matrix and Edelstein’s fixed point theorem. Zbl 0347.15006
Czerwik, S.
2
1976
Generalization of Edelstein’s fixed point theorem. Zbl 0351.54038
Czerwik, Stefan
1
1976
On the global existence of solutions of a functional-differential equation. Zbl 0322.34050
Czerwik, Stefan
4
1975
Special solutions of a functional equation. Zbl 0308.39002
Czerwik, S.
2
1975
On the unbounded and continuous solutions of a system of functional equations. Zbl 0324.39002
Czerwik, Stefan
1
1975
On the continuous dependence of solutions of some functional equations on given functions. Zbl 0216.13104
Czerwik, S.
3
1971
On the differentiability of solutions of a functional equation with respect to a parameter. Zbl 0221.39003
Czerwik, S.
1
1971
all top 5

Cited by 1,036 Authors

110 Park, Choonkil
54 Eshaghi Gordji, Madjid
50 Aydi, Hassen Mohamed
47 Radenovic, Stojan
43 Jung, Soon-Mo
40 Karapınar, Erdal
34 Lee, Jung-Rye
34 Parvaneh, Vahid
32 Najati, Abbas
30 Rassias, Themistocles Michael
28 Mitrović, Zoran D.
27 Brzdęk, Janusz
27 Hussain, Nawab
26 Rassias, John Michael
23 Cho, Yeol Je
21 Kadelburg, Zoran
21 Kim, Hark-Mahn
20 Shin, Dong-Yun
20 Sintunavarat, Wutiphol
19 Khodaei, Hamid
19 Lee, Yang-Hi
18 Bodaghi, Abasalt
18 Saadati, Reza
17 Kumam, Poom
16 Nguyen Van Dung
15 Abdeljawad, Thabet
15 de la Sen, Manuel
14 Mlaiki, Nabil M.
14 Nashine, Hemant Kumar
13 El-Fassi, Iz-Iddine
13 Moslehian, Mohammad Sal
12 Ebadian, Ali
12 Kang, DongSeung
12 Roshan, Jamal Rezaei
11 Ansari, Arslan Hojat
11 Azadi-Kenary, Hassan
11 Huang, Huaping
11 Kabbaj, Samir
11 Lee, Young-Su
11 Popa, Dorian
11 Sarwar, Muhammad
10 Abbas, Mujahid
10 Eskandani, Golamreza Zamani
10 Jun, Kil-Woung
10 Kim, Gwang Hui
10 Nazam, Muhammad
10 Rezaei, Hamid
10 Vo Thi Le Hang
9 Agarwal, Ravi P.
9 Ameer, Eskandar
9 Czerwik, Stefan
9 Ghaemi, Mohammad Bagher
9 Imdad, Mohammad
9 Petruşel, Adrian
9 Petruşel, Gabriela
9 Saha, Mantu
9 Sedghi, Shaban
9 Shatanawi, Wasfi A.
9 Singh, Deepak Kumar
8 Ahmad, Jamshaid
8 Ciepliński, Krzysztof
8 Došenović, Tatjana
8 Fulga, Andreea
8 Jang, Sunyoung
8 Park, Wongil
8 Samet, Bessem
7 Bota, Monica-Felicia
7 Ege, Ozgur
7 George, Reny
7 Hammad, Hasanen Abuelmagd
7 Işık, Hüseyin
7 Kamran, Tayyab
7 Moghimi, Mohammad Bagher Farshbaf
7 Samreen, Maria
7 Tamilvanan, Kandhasamy
7 Yamaod, Oratai
6 Alsulami, Hamed Hamdan
6 Asim, Mohammad
6 Bae, Jae-Hyeong
6 Chahbi, Abdellatif
6 Chang, Ick-Soon
6 Chen, Chunfang
6 Dey, Lakshmi Kanta
6 Gautam, Pragati
6 Găvruţă, Paşc
6 Kim, Sang Og
6 Majani, Hamid
6 Mohanta, Sushanta Kumar
6 Mustafa, Zead
6 Postolache, Mihai
6 Rassias, Michael Th.
6 Roy, Kushal
6 Shahzad, Naseer
6 Shoaib, Abdullah
6 Vetro, Calogero
6 Zhu, Chuanxi
5 Afshari, Hojjat
5 Ali, Basit
5 Ali, Muhammad Usman
5 Alizadeh, Badrkhan
...and 936 more Authors
all top 5

Cited in 176 Serials

83 Journal of Inequalities and Applications
71 Journal of Function Spaces
66 Abstract and Applied Analysis
66 Fixed Point Theory and Applications
55 Journal of Mathematical Analysis and Applications
44 Advances in Difference Equations
44 Journal of Fixed Point Theory and Applications
28 Filomat
25 Journal of Mathematics
24 Journal of Nonlinear Science and Applications
23 Thai Journal of Mathematics
22 AIMS Mathematics
20 Aequationes Mathematicae
18 Revista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A: Matemáticas. RACSAM
16 Results in Mathematics
16 Journal of Linear and Topological Algebra
15 Korean Journal of Mathematics
14 Nonlinear Analysis. Theory, Methods & Applications. Series A: Theory and Methods
14 Applied Mathematics Letters
13 Applied Mathematics and Computation
13 Acta Mathematica Sinica. English Series
13 Mathematical Sciences
11 Advances in Mathematical Physics
11 Symmetry
10 Discrete Dynamics in Nature and Society
10 Nonlinear Analysis. Modelling and Control
10 Open Mathematics
9 Rendiconti del Circolo Matemàtico di Palermo. Serie II
9 Nonlinear Functional Analysis and Applications
8 The Journal of Analysis
8 Asian-European Journal of Mathematics
8 Tbilisi Mathematical Journal
8 Sahand Communications in Mathematical Analysis
7 Computers & Mathematics with Applications
7 Matematički Vesnik
7 Mediterranean Journal of Mathematics
7 Afrika Matematika
6 International Journal of Mathematics and Mathematical Sciences
6 Journal of Applied Mathematics
6 Bulletin of the Malaysian Mathematical Sciences Society. Second Series
6 International Journal of Geometric Methods in Modern Physics
6 Annali dell’Università di Ferrara. Sezione VII. Scienze Matematiche
6 Axioms
6 Mathematics
5 Demonstratio Mathematica
5 Acta Mathematica Hungarica
5 Facta Universitatis. Series Mathematics and Informatics
5 Palestine Journal of Mathematics
4 Journal of Mathematical Physics
4 Topology and its Applications
4 Applied Mathematics and Mechanics. (English Edition)
4 Journal of Function Spaces and Applications
4 Boletim da Sociedade Paranaense de Matemática. Terceira Série
4 Acta Universitatis Sapientiae. Mathematica
4 Journal of Mathematical Extension
4 International Journal of Analysis and Applications
4 Nonlinear Analysis. Theory, Methods & Applications
4 Cogent Mathematics & Statistics
3 Ukrainian Mathematical Journal
3 Abhandlungen aus dem Mathematischen Seminar der Universität Hamburg
3 Fasciculi Mathematici
3 Fuzzy Sets and Systems
3 Information Sciences
3 Numerical Functional Analysis and Optimization
3 Acta Applicandae Mathematicae
3 Georgian Mathematical Journal
3 Journal of Difference Equations and Applications
3 Applied Mathematics E-Notes
3 Fixed Point Theory
3 Proyecciones
3 JP Journal of Fixed Point Theory and Applications
3 Journal of Mathematical Inequalities
3 Banach Journal of Mathematical Analysis
3 Bulletin of Mathematical Analysis and Applications
3 Applied General Topology
3 Arabian Journal of Mathematics
3 Transactions of A. Razmadze Mathematical Institute
2 Journal of Geometry and Physics
2 Acta Mathematica Vietnamica
2 Journal of Computational and Applied Mathematics
2 Journal of Optimization Theory and Applications
2 Journal of Soviet Mathematics
2 Mathematica Slovaca
2 Quaestiones Mathematicae
2 Optimization
2 Mathematical and Computer Modelling
2 Expositiones Mathematicae
2 Indagationes Mathematicae. New Series
2 Tatra Mountains Mathematical Publications
2 Computational and Applied Mathematics
2 Bulletin des Sciences Mathématiques
2 Arab Journal of Mathematical Sciences
2 Novi Sad Journal of Mathematics
2 Communications de la Faculté des Sciences de l’Université d’Ankara. Séries A1. Mathematics and Statistics
2 Communications of the Korean Mathematical Society
2 Central European Journal of Mathematics
2 South East Asian Journal of Mathematics and Mathematical Sciences
2 Cubo
2 Communications in Mathematical Analysis
2 Applicable Analysis and Discrete Mathematics
...and 76 more Serials
all top 5

Cited in 40 Fields

536 General topology (54-XX)
498 Difference and functional equations (39-XX)
413 Operator theory (47-XX)
196 Functional analysis (46-XX)
57 Ordinary differential equations (34-XX)
54 Integral equations (45-XX)
29 Real functions (26-XX)
14 Nonassociative rings and algebras (17-XX)
12 Partial differential equations (35-XX)
12 Numerical analysis (65-XX)
11 Approximations and expansions (41-XX)
7 Dynamical systems and ergodic theory (37-XX)
6 Measure and integration (28-XX)
6 Operations research, mathematical programming (90-XX)
5 Combinatorics (05-XX)
5 Field theory and polynomials (12-XX)
5 Linear and multilinear algebra; matrix theory (15-XX)
4 Number theory (11-XX)
4 Special functions (33-XX)
3 Associative rings and algebras (16-XX)
3 Functions of a complex variable (30-XX)
3 Calculus of variations and optimal control; optimization (49-XX)
3 Algebraic topology (55-XX)
2 Mathematical logic and foundations (03-XX)
2 Order, lattices, ordered algebraic structures (06-XX)
2 Group theory and generalizations (20-XX)
2 Topological groups, Lie groups (22-XX)
2 Integral transforms, operational calculus (44-XX)
2 Global analysis, analysis on manifolds (58-XX)
2 Probability theory and stochastic processes (60-XX)
2 Information and communication theory, circuits (94-XX)
1 General and overarching topics; collections (00-XX)
1 History and biography (01-XX)
1 Commutative algebra (13-XX)
1 Several complex variables and analytic spaces (32-XX)
1 Abstract harmonic analysis (43-XX)
1 Computer science (68-XX)
1 Fluid mechanics (76-XX)
1 Game theory, economics, finance, and other social and behavioral sciences (91-XX)
1 Biology and other natural sciences (92-XX)

Citations by Year