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Sikorska, Justyna

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Author ID: sikorska.justyna Recent zbMATH articles by "Sikorska, Justyna"
Published as: Sikorska, Justyna; Sikorska, J.
Documents Indexed: 38 Publications since 1995, including 1 Book

Publications by Year

Citations contained in zbMATH Open

31 Publications have been cited 313 times in 178 Documents Cited by Year
Recent developments of the conditional stability of the homomorphism equation. Zbl 1312.39031
Brzdęk, Janusz; Fechner, Włodzimierz; Moslehian, Mohammad Sal; Sikorska, Justyna
43
2015
Norm derivatives and characterizations of inner product spaces. Zbl 1196.46001
Alsina, Claudi; Sikorska, Justyna; Tomás, M. Santos
33
2010
On a direct method for proving the Hyers-Ulam stability of functional equations. Zbl 1198.39039
Sikorska, Justyna
31
2010
A conditional exponential functional equation and its stability. Zbl 1187.39032
Brzdȩk, Janusz; Sikorska, Justyna
23
2010
Stability of the orthogonal additivity. Zbl 0833.39007
Ger, Roman; Sikorska, Justyna
21
1995
On the Cauchy equation on spheres. Zbl 0894.39009
Ger, Roman; Sikorska, Justyna
21
1997
On two conditional Pexider functional equations and their stabilities. Zbl 1162.39018
Sikorska, Justyna
20
2009
Variations on the Drygas equation and its stability. Zbl 1201.39023
Forti, Gian-Luigi; Sikorska, Justyna
14
2011
Exponential functional equation on spheres. Zbl 1205.39032
Sikorska, Justyna
10
2010
On the stability of additivity. Zbl 1197.39016
Fechner, Włodzimierz; Sikorska, Justyna
10
2010
Orthogonalities and functional equations. Zbl 1316.39008
Sikorska, Justyna
10
2015
Hyperstability of the Fréchet equation and a characterization of inner product spaces. Zbl 1287.39017
Bahyrycz, Anna; Brzdȩk, Janusz; Piszczek, Magdalena; Sikorska, Justyna
10
2013
On a Pexiderized conditional exponential functional equation. Zbl 1212.39039
Sikorska, J.
10
2009
Generalized stability of the Cauchy and the Jensen functional equations on spheres. Zbl 1157.39019
Sikorska, Justyna
9
2008
Generalized orthogonal stability of some functional equations. Zbl 1133.39023
Sikorska, Justyna
7
2006
Stability of the preservation of the equality of distance. Zbl 1083.39027
Sikorska, Justyna
6
2005
Set-valued orthogonal additivity. Zbl 1328.39039
Sikorska, Justyna
5
2015
Alienation of the logarithmic and exponential functional equations. Zbl 1382.39031
Kominek, Zygfryd; Sikorska, Justyna
5
2016
On the equation of the \(\rho\)-orthogonal additivity. Zbl 1178.39037
Alsina, Claudi; Sikorska, Justyna; Santos Tomás, Maria
3
2007
On a method of solving some functional equations for set-valued functions. Zbl 1428.39032
Sikorska, Justyna
3
2019
Differentiable solutions of a functional equation related to the non-power means. Zbl 0892.39019
Sikorska, Justyna
3
1998
Orthogonal stability of the Cauchy equation on balls. Zbl 0963.39029
Sikorska, Justyna
2
2000
Orthogonal stability of the Cauchy functional equation on balls in normed linear spaces. Zbl 1057.39026
Sikorska, Justyna
2
2004
On a functional equation related to power means. Zbl 1076.39020
Sikorska, Justyna
2
2003
Sandwich theorems for orthogonally additive functions. Zbl 1266.39031
Fechner, Włodzimierz; Sikorska, Justyna
2
2009
A singular behaviour of a set-valued approximate orthogonal additivity. Zbl 1347.41045
Sikorska, Justyna
2
2016
On a separation for the Cauchy equation on spheres. Zbl 1256.39017
Fechner, Włodzimierz; Sikorska, Justyna
2
2012
The forty-sixth international symposium on functional equations, June 22–29, 2008, Opava, Czech Republic. Zbl 1204.39001
Sikorska, Justyna (ed.)
1
2009
On mappings preserving equilateral triangles in normed spaces. Zbl 1112.46023
Sikorska, Justyna; Szostok, Tomasz
1
2006
Note on a functional equation related to the power means. Zbl 0973.39015
Sikorska, Justyna
1
2000
On a Jensen-Hosszú equation. II. Zbl 1382.39030
Kominek, Zygfryd; Sikorska, Justyna
1
2012
On a method of solving some functional equations for set-valued functions. Zbl 1428.39032
Sikorska, Justyna
3
2019
Alienation of the logarithmic and exponential functional equations. Zbl 1382.39031
Kominek, Zygfryd; Sikorska, Justyna
5
2016
A singular behaviour of a set-valued approximate orthogonal additivity. Zbl 1347.41045
Sikorska, Justyna
2
2016
Recent developments of the conditional stability of the homomorphism equation. Zbl 1312.39031
Brzdęk, Janusz; Fechner, Włodzimierz; Moslehian, Mohammad Sal; Sikorska, Justyna
43
2015
Orthogonalities and functional equations. Zbl 1316.39008
Sikorska, Justyna
10
2015
Set-valued orthogonal additivity. Zbl 1328.39039
Sikorska, Justyna
5
2015
Hyperstability of the Fréchet equation and a characterization of inner product spaces. Zbl 1287.39017
Bahyrycz, Anna; Brzdȩk, Janusz; Piszczek, Magdalena; Sikorska, Justyna
10
2013
On a separation for the Cauchy equation on spheres. Zbl 1256.39017
Fechner, Włodzimierz; Sikorska, Justyna
2
2012
On a Jensen-Hosszú equation. II. Zbl 1382.39030
Kominek, Zygfryd; Sikorska, Justyna
1
2012
Variations on the Drygas equation and its stability. Zbl 1201.39023
Forti, Gian-Luigi; Sikorska, Justyna
14
2011
Norm derivatives and characterizations of inner product spaces. Zbl 1196.46001
Alsina, Claudi; Sikorska, Justyna; Tomás, M. Santos
33
2010
On a direct method for proving the Hyers-Ulam stability of functional equations. Zbl 1198.39039
Sikorska, Justyna
31
2010
A conditional exponential functional equation and its stability. Zbl 1187.39032
Brzdȩk, Janusz; Sikorska, Justyna
23
2010
Exponential functional equation on spheres. Zbl 1205.39032
Sikorska, Justyna
10
2010
On the stability of additivity. Zbl 1197.39016
Fechner, Włodzimierz; Sikorska, Justyna
10
2010
On two conditional Pexider functional equations and their stabilities. Zbl 1162.39018
Sikorska, Justyna
20
2009
On a Pexiderized conditional exponential functional equation. Zbl 1212.39039
Sikorska, J.
10
2009
Sandwich theorems for orthogonally additive functions. Zbl 1266.39031
Fechner, Włodzimierz; Sikorska, Justyna
2
2009
The forty-sixth international symposium on functional equations, June 22–29, 2008, Opava, Czech Republic. Zbl 1204.39001
Sikorska, Justyna
1
2009
Generalized stability of the Cauchy and the Jensen functional equations on spheres. Zbl 1157.39019
Sikorska, Justyna
9
2008
On the equation of the \(\rho\)-orthogonal additivity. Zbl 1178.39037
Alsina, Claudi; Sikorska, Justyna; Santos Tomás, Maria
3
2007
Generalized orthogonal stability of some functional equations. Zbl 1133.39023
Sikorska, Justyna
7
2006
On mappings preserving equilateral triangles in normed spaces. Zbl 1112.46023
Sikorska, Justyna; Szostok, Tomasz
1
2006
Stability of the preservation of the equality of distance. Zbl 1083.39027
Sikorska, Justyna
6
2005
Orthogonal stability of the Cauchy functional equation on balls in normed linear spaces. Zbl 1057.39026
Sikorska, Justyna
2
2004
On a functional equation related to power means. Zbl 1076.39020
Sikorska, Justyna
2
2003
Orthogonal stability of the Cauchy equation on balls. Zbl 0963.39029
Sikorska, Justyna
2
2000
Note on a functional equation related to the power means. Zbl 0973.39015
Sikorska, Justyna
1
2000
Differentiable solutions of a functional equation related to the non-power means. Zbl 0892.39019
Sikorska, Justyna
3
1998
On the Cauchy equation on spheres. Zbl 0894.39009
Ger, Roman; Sikorska, Justyna
21
1997
Stability of the orthogonal additivity. Zbl 0833.39007
Ger, Roman; Sikorska, Justyna
21
1995
all top 5

Cited by 153 Authors

27 Brzdęk, Janusz
16 Sikorska, Justyna
13 Chung, Jaeyoung
13 Wójcik, Paweł
12 El-Fassi, Iz-Iddine
11 Rassias, John Michael
7 Chmieliński, Jacek
7 Ciepliński, Krzysztof
7 Park, Choonkil
6 Choi, Chang-Kwon
5 Bahyrycz, Anna
5 Moslehian, Mohammad Sal
5 Yang, Xiuzhong
4 Cădariu, Liviu I.
4 Dehghani, Mahdi
4 Dong, Yunbai
4 Malejki, Renata
4 Popa, Dorian
4 Rassias, Themistocles Michael
4 Xu, Bing
3 Aiemsomboon, Laddawan
3 Almahalebi, Muaadh
3 Baron, Karol
3 Fechner, Włodzimierz
3 Jung, Soon-Mo
3 Kabbaj, Samir
3 Kaskasem, Prondanai
3 Klin-Eam, Chakkrid
3 Leśniak, Zbigniew
3 Olko, Jolanta
3 Piszczek, Magdalena
3 Sintunavarat, Wutiphol
3 Xu, Tianzhou
3 Zamani, Ali
2 Abed, Mohammed Y.
2 Badora, Roman
2 Charifi, Ahmed
2 Cho, Yeol Je
2 Dadipour, Farzad
2 El-hady, El-sayed
2 Elqorachi, Elhoucien
2 Fošner, Ajda
2 Jabłońska, Eliza
2 Jahanipur, Ruhollah
2 Lee, Bogeun
2 Lee, Jung-Rye
2 Liu, Guofen
2 Najati, Abbas
2 Nuino, Ahmed
2 Páles, Zsolt
2 Pang, Chin-Tzong
2 Saadati, Reza
2 Salemi, Abbas
2 Stypuła, Tomasz
2 Szczawińska, Joanna
2 Xu, Wanxin
2 Zhao, Xiaopeng
1 Adamek, Mirosław
1 Aghajani, Asadollah
1 Al-Ali, S. A. A.
1 Alonso, Javier
1 Alzer, Horst
1 Amyari, Maryam
1 Aruldass, Antony Raj
1 Azadi-Kenary, Hassan
1 Banaś, Józef
1 Batko, Bogdan
1 Bergam, Amal
1 Bouikhalene, Belaid
1 Bounader, Nordine
1 Brillouët-Belluot, Nicole
1 Chahbi, Abdellatif
1 Chang, Lidan
1 Chudziak, Jacek
1 Cui, Jianlian
1 Dăianu, Dan M.
1 Ding, Yali
1 Domański, Pawel Jan
1 Dragomir, Sever Silvestru
1 El Ghali, Rachid
1 Elkettani, Youssfi
1 Eshaghi Gordji, Madjid
1 Fadli, Brahim
1 Forti, Gian Luigi
1 Gao, Zhuoyan
1 Ger, Roman
1 Ghali, R. E.
1 Gunawan, Hendra
1 Guo, Qiaoling
1 Horváth, Ákos G.
1 Hyers, Donald H.
1 Isac, George
1 Janchada, Aekarach
1 Jang, Sunyoung
1 Jin, Zhen-Yu
1 Ju, Yumin
1 Karapınar, Erdal
1 Khodaei, Hamid
1 Kikianty, Eder
1 Kim, Byungbae
...and 53 more Authors
all top 5

Cited in 50 Serials

32 Aequationes Mathematicae
17 Journal of Mathematical Analysis and Applications
9 Journal of Function Spaces
8 Results in Mathematics
8 Journal of Inequalities and Applications
7 Acta Mathematica Hungarica
6 Nonlinear Analysis. Theory, Methods & Applications. Series A: Theory and Methods
5 Bulletin of the Australian Mathematical Society
5 Annales Mathematicae Silesianae
5 Advances in Difference Equations
4 Applied Mathematics Letters
4 Journal of Fixed Point Theory and Applications
3 Linear Algebra and its Applications
3 Journal of Function Spaces and Applications
3 Banach Journal of Mathematical Analysis
3 Journal of Linear and Topological Algebra
2 Applied Mathematics and Computation
2 Archiv der Mathematik
2 Demonstratio Mathematica
2 Indagationes Mathematicae. New Series
2 Abstract and Applied Analysis
2 Proyecciones
2 Tbilisi Mathematical Journal
2 Acta Universitatis Sapientiae. Mathematica
2 Advances in Mathematical Physics
2 Set-Valued and Variational Analysis
2 Annales Universitatis Paedagogicae Cracoviensis. Studia Mathematica
2 Revista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A: Matemáticas. RACSAM
1 Rocky Mountain Journal of Mathematics
1 Functiones et Approximatio. Commentarii Mathematici
1 Functional Analysis and its Applications
1 Fuzzy Sets and Systems
1 Journal of Approximation Theory
1 Journal of Geometry
1 Proceedings of the American Mathematical Society
1 Semigroup Forum
1 Bulletin of the Korean Mathematical Society
1 Bulletin of the Iranian Mathematical Society
1 The Journal of Analysis
1 Acta Mathematica Sinica. English Series
1 Nonlinear Functional Analysis and Applications
1 Journal of the Australian Mathematical Society
1 Journal of Applied Mathematics
1 Fixed Point Theory and Applications
1 Advances in Pure and Applied Mathematics
1 Annals of Functional Analysis
1 Journal of Applied Analysis and Computation
1 International Journal of Analysis and Applications
1 Sahand Communications in Mathematical Analysis
1 Korean Journal of Mathematics

Citations by Year