Edit Profile (opens in new tab) Badora, Roman Compute Distance To: Compute Author ID: badora.roman Published as: Badora, Roman Documents Indexed: 36 Publications since 1991 Co-Authors: 8 Co-Authors with 13 Joint Publications 181 Co-Co-Authors all top 5 Co-Authors 23 single-authored 6 Przebieracz, Barbara 4 Volkmann, Peter 3 Brzdęk, Janusz 2 Ger, Roman 2 Páles, Zsolt 1 Chmieliński, Jacek 1 Kochanek, Tomasz 1 Székelyhidi, László all top 5 Serials 7 Aequationes Mathematicae 4 Journal of Mathematical Analysis and Applications 3 Results in Mathematics 2 Archiv der Mathematik 2 Publicationes Mathematicae Debrecen 2 JIPAM. Journal of Inequalities in Pure & Applied Mathematics 1 Annales Polonici Mathematici 1 Funkcialaj Ekvacioj. Serio Internacia 1 Nonlinear Analysis. Theory, Methods & Applications. Series A: Theory and Methods 1 Prace Naukowe Uniwersytetu Śląskiego w Katowicach. Annales Mathematicae Silesianae 1 Facta Universitatis. Series Mathematics and Informatics 1 Georgian Mathematical Journal 1 Journal of Difference Equations and Applications 1 Mathematical Inequalities & Applications 1 Annales Mathematicae Silesianae 1 The ANZIAM Journal 1 Rocznik Naukowo-Dydaktyczny. Prace Matematyczne 1 Bulletin of Mathematical Analysis and Applications all top 5 Fields 32 Difference and functional equations (39-XX) 9 Abstract harmonic analysis (43-XX) 3 Group theory and generalizations (20-XX) 3 Functional analysis (46-XX) 3 Operator theory (47-XX) 2 General topology (54-XX) 1 Order, lattices, ordered algebraic structures (06-XX) 1 Real functions (26-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 32 Publications have been cited 243 times in 174 Documents Cited by ▼ Year ▼ On approximate derivations. Zbl 1093.39024Badora, Roman 48 2006 On approximate ring homomorphisms. Zbl 1014.39020Badora, Roman 38 2002 On some generalized invariant means and their application to the stability of the Hyers-Ulam type. Zbl 0787.43003Badora, Roman 18 1993 On some trigonometric functional inequalities. Zbl 1010.39012Badora, Roman; Ger, Roman 18 2002 On a joint generalization of Cauchy’s and d’Alembert’s functional equations. Zbl 0763.39003Badora, Roman 14 1992 On Hyers-Ulam stability of Wilson’s functional equation. Zbl 0986.39016Badora, Roman 12 2000 Decomposition of mappings approximately inner product preserving. Zbl 1091.39005Badora, Roman; Chmieliński, Jacek 10 2005 Additive selections and the stability of the Cauchy functional equation. Zbl 1037.39008Badora, Roman; Ger, Roman; Páles, Zsolt 9 2003 On the stability of the cosine functional equation. Zbl 1159.39313Badora, Roman 7 1998 Fixed points of a mapping and Hyers-Ulam stability. Zbl 1311.39035Badora, Roman; Brzdȩk, Janusz 7 2014 A note on a fixed point theorem and the Hyers-Ulam stability. Zbl 1254.39012Badora, Roman; Brzdȩk, Janusz 7 2012 On the Hahn–Banach theorem for groups. Zbl 1106.46008Badora, Roman 7 2006 Note on the superstability of the Cauchy functional equation. Zbl 0973.39021Badora, Roman 5 2000 On Tabor groupoids and stability of some functional equations. Zbl 1297.39025Badora, Roman; Przebieracz, Barbara; Volkmann, Peter 5 2014 On the stability of a functional equation for generalized trigonometric functions. Zbl 0976.39029Badora, Roman 4 2000 On the separation with \(n\)-additive functions. Zbl 0883.43004Badora, Roman 4 1997 On a generalized Wilson functional equation. Zbl 1098.39017Badora, Roman 3 2005 Stability properties of some functional equations. Zbl 1247.39027Badora, Roman 3 2011 On the d’Alembert type functional equation in Hilbert algebras. Zbl 1142.39316Badora, Roman 3 2000 Stability of the Pexider functional equation. Zbl 1228.39023Badora, Roman; Przebieracz, Barbara; Volkmann, Peter 3 2011 On approximate group homomorphisms. Zbl 1390.39097Badora, Roman; Przebieracz, Barbara 2 2018 Invariant means, set ideals and separation theorems. Zbl 1082.43001Badora, Roman 2 2005 On generalized invariant means and separation theorems. Zbl 1131.39024Badora, Roman 2 2006 Monomial selections of set-valued maps. Zbl 0964.39020Badora, Roman; Páles, Zsolt; Székelyhidi, László 2 1999 On some generalized invariant means and almost approximately additive functions. Zbl 0841.43004Badora, Roman 2 1994 On approximately additive functions. Zbl 0820.39013Badora, Roman 2 1994 On an invariant mean for \({\mathcal J}\)-essentially bounded functions. Zbl 0777.43001Badora, Roman 1 1991 Approximate homomorphisms on lattices. Zbl 1448.39043Badora, Roman; Kochanek, Tomasz; Przebieracz, Barbara 1 2018 Banach limit in the stability problem of a linear functional equation. Zbl 1467.39019Badora, Roman; Brzdęk, Janusz 1 2021 The Ulam stability problem for the functional equation \(f(x\star g(y))=f(x)f(y)\). Zbl 1440.39016Badora, Roman 1 2020 More on Hyers’ theorem. Zbl 1353.39025Badora, Roman; Przebieracz, Barbara; Volkmann, Peter 1 2017 The Hahn-Banach theorem almost everywhere. Zbl 1352.46004Badora, Roman 1 2016 Banach limit in the stability problem of a linear functional equation. Zbl 1467.39019Badora, Roman; Brzdęk, Janusz 1 2021 The Ulam stability problem for the functional equation \(f(x\star g(y))=f(x)f(y)\). Zbl 1440.39016Badora, Roman 1 2020 On approximate group homomorphisms. Zbl 1390.39097Badora, Roman; Przebieracz, Barbara 2 2018 Approximate homomorphisms on lattices. Zbl 1448.39043Badora, Roman; Kochanek, Tomasz; Przebieracz, Barbara 1 2018 More on Hyers’ theorem. Zbl 1353.39025Badora, Roman; Przebieracz, Barbara; Volkmann, Peter 1 2017 The Hahn-Banach theorem almost everywhere. Zbl 1352.46004Badora, Roman 1 2016 Fixed points of a mapping and Hyers-Ulam stability. Zbl 1311.39035Badora, Roman; Brzdȩk, Janusz 7 2014 On Tabor groupoids and stability of some functional equations. Zbl 1297.39025Badora, Roman; Przebieracz, Barbara; Volkmann, Peter 5 2014 A note on a fixed point theorem and the Hyers-Ulam stability. Zbl 1254.39012Badora, Roman; Brzdȩk, Janusz 7 2012 Stability properties of some functional equations. Zbl 1247.39027Badora, Roman 3 2011 Stability of the Pexider functional equation. Zbl 1228.39023Badora, Roman; Przebieracz, Barbara; Volkmann, Peter 3 2011 On approximate derivations. Zbl 1093.39024Badora, Roman 48 2006 On the Hahn–Banach theorem for groups. Zbl 1106.46008Badora, Roman 7 2006 On generalized invariant means and separation theorems. Zbl 1131.39024Badora, Roman 2 2006 Decomposition of mappings approximately inner product preserving. Zbl 1091.39005Badora, Roman; Chmieliński, Jacek 10 2005 On a generalized Wilson functional equation. Zbl 1098.39017Badora, Roman 3 2005 Invariant means, set ideals and separation theorems. Zbl 1082.43001Badora, Roman 2 2005 Additive selections and the stability of the Cauchy functional equation. Zbl 1037.39008Badora, Roman; Ger, Roman; Páles, Zsolt 9 2003 On approximate ring homomorphisms. Zbl 1014.39020Badora, Roman 38 2002 On some trigonometric functional inequalities. Zbl 1010.39012Badora, Roman; Ger, Roman 18 2002 On Hyers-Ulam stability of Wilson’s functional equation. Zbl 0986.39016Badora, Roman 12 2000 Note on the superstability of the Cauchy functional equation. Zbl 0973.39021Badora, Roman 5 2000 On the stability of a functional equation for generalized trigonometric functions. Zbl 0976.39029Badora, Roman 4 2000 On the d’Alembert type functional equation in Hilbert algebras. Zbl 1142.39316Badora, Roman 3 2000 Monomial selections of set-valued maps. Zbl 0964.39020Badora, Roman; Páles, Zsolt; Székelyhidi, László 2 1999 On the stability of the cosine functional equation. Zbl 1159.39313Badora, Roman 7 1998 On the separation with \(n\)-additive functions. Zbl 0883.43004Badora, Roman 4 1997 On some generalized invariant means and almost approximately additive functions. Zbl 0841.43004Badora, Roman 2 1994 On approximately additive functions. Zbl 0820.39013Badora, Roman 2 1994 On some generalized invariant means and their application to the stability of the Hyers-Ulam type. Zbl 0787.43003Badora, Roman 18 1993 On a joint generalization of Cauchy’s and d’Alembert’s functional equations. Zbl 0763.39003Badora, Roman 14 1992 On an invariant mean for \({\mathcal J}\)-essentially bounded functions. Zbl 0777.43001Badora, Roman 1 1991 all cited Publications top 5 cited Publications all top 5 Cited by 143 Authors 20 Eshaghi Gordji, Madjid 14 Brzdęk, Janusz 12 Chang, Ick-Soon 12 Kim, Gwang Hui 10 Kabbaj, Samir 10 Khodaei, Hamid 9 Ciepliński, Krzysztof 9 Zeglami, Driss 8 Łukasik, Radosław 7 Fadli, Brahim 6 El-Fassi, Iz-Iddine 6 Park, Choonkil 6 Rassias, John Michael 5 Alizadeh, Zahra 5 Leśniak, Zbigniew 5 Sikorska, Justyna 4 Alizadeh, Badrkhan 4 Badora, Roman 4 Chahbi, Abdellatif 4 Ebadian, Ali 4 Forti, Gian Luigi 4 Ghaemi, Mohammad Bagher 4 Jung, Yong-Soo 4 Kim, Hark-Mahn 4 Roh, Jaiok 3 Bouikhalene, Belaid 3 Cădariu, Liviu I. 3 Charifi, Ahmed 3 Chmieliński, Jacek 3 Elhoucien, Elqorachi 3 Fošner, Ajda 3 Ghobadipour, Norouz 3 Rassias, Themistocles Michael 3 Stetkær, Henrik 3 Toborg, Imke 2 Azadi-Kenary, Hassan 2 Bahyrycz, Anna 2 Bingham, Nicholas Hugh 2 Bodaghi, Abasalt 2 Cao, Huaixin 2 Cho, Yeol Je 2 Dashti, Mahshid 2 de la Sen, Manuel 2 Dong, Yunbai 2 Elqorachi, Elhoucien 2 Ger, Roman 2 Gselmann, Eszter 2 Kaboli-Gharetapeh, S. 2 Kang, Sheon-Young 2 Kania, Tomasz 2 Khodabakhsh, Razieh 2 Malejki, Renata 2 Nikoufar, Ismail 2 Olbryś, Andrzej 2 Ostaszewski, Adam J. 2 Páles, Zsolt 2 Piszczek, Magdalena 2 Przebieracz, Barbara 2 Roukbi, Ahmed 2 Székelyhidi, László 2 Volkmann, Peter 2 Xu, Bing 1 Ahmed, Redouani 1 Alinejad, Ahmad 1 Amyari, Maryam 1 Anjidani, Ehsan 1 Ansari-Piri, Esmaeil 1 Asgari, Gholamreza 1 Askari, Gholamreza 1 Bae, Jae-Hyeong 1 Baghban, H. 1 Bahraini, Ali 1 Batko, Bogdan 1 Batool, Afshan 1 Bavand Savadkouhi, Meysam 1 Belaid, Bouikhalene 1 Boo, Deok-Hoon 1 Boros, Zoltán 1 Brillouët-Belluot, Nicole 1 Budzik, Dorota 1 Chojnacki, Wojciech 1 Chu, Hahng-Yun 1 Chung, Jaeyoung 1 Cvetković, Marija S. 1 Czerwik, Stefan 1 Dangskul, Supreedee 1 Dlutek, Krzysztof 1 Domecq, H. Bustos 1 Dragomir, Sever Silvestru 1 Ebanks, Bruce R. 1 Ege, Ozgur 1 El-hady, El-sayed 1 Eloqrachi, Elhoucien 1 Fattahi, Fatemeh 1 Fechner, Włodzimierz 1 Fechner, Żywilla 1 Feizabadi, Hassan 1 Ghazanfari, Amir Ghasem 1 Gnacik, Michał 1 Grünwald, Richárd ...and 43 more Authors all top 5 Cited in 64 Serials 27 Aequationes Mathematicae 15 Abstract and Applied Analysis 13 Journal of Mathematical Analysis and Applications 7 Journal of Inequalities and Applications 6 Results in Mathematics 6 Afrika Matematika 5 Annales Mathematicae Silesianae 5 Advances in Difference Equations 4 Nonlinear Analysis. Theory, Methods & Applications. Series A: Theory and Methods 4 Applied Mathematics Letters 3 Acta Mathematica Hungarica 3 Acta Mathematica Sinica. English Series 3 International Journal of Geometric Methods in Modern Physics 3 Proyecciones 3 Journal of Function Spaces 3 Korean Journal of Mathematics 2 Quaestiones Mathematicae 2 Rendiconti del Circolo Matemàtico di Palermo. Serie II 2 Georgian Mathematical Journal 2 Journal of Applied Mathematics 2 Fixed Point Theory and Applications 2 Journal of Fixed Point Theory and Applications 2 Banach Journal of Mathematical Analysis 2 Mathematical Sciences 1 Bulletin of the Australian Mathematical Society 1 Computers & Mathematics with Applications 1 Indian Journal of Pure & Applied Mathematics 1 Journal of Mathematical Physics 1 Ukrainian Mathematical Journal 1 Acta Mathematica Vietnamica 1 Annales Universitatis Mariae Curie-Skłodowska. Sectio A. Mathematica 1 Applied Mathematics and Computation 1 Archiv der Mathematik 1 Demonstratio Mathematica 1 Dissertationes Mathematicae 1 Fuzzy Sets and Systems 1 International Journal of Mathematics and Mathematical Sciences 1 Kyungpook Mathematical Journal 1 Proceedings of the American Mathematical Society 1 Semigroup Forum 1 Topology and its Applications 1 Indagationes Mathematicae. New Series 1 The Journal of Analysis 1 Filomat 1 Journal of Convex Analysis 1 Boletín de la Sociedad Matemática Mexicana. Third Series 1 Honam Mathematical Journal 1 Mathematical Inequalities & Applications 1 Discrete Dynamics in Nature and Society 1 Communications of the Korean Mathematical Society 1 Journal of the Korean Society of Mathematical Education. Series B. The Pure and Applied Mathematics 1 Journal of Function Spaces and Applications 1 Boletim da Sociedade Paranaense de Matemática. Terceira Série 1 Mediterranean Journal of Mathematics 1 Proceedings of the Steklov Institute of Mathematics 1 Journal of Nonlinear Science and Applications 1 Acta Universitatis Sapientiae. Mathematica 1 Set-Valued and Variational Analysis 1 Advances in Pure and Applied Mathematics 1 International Journal of Nonlinear Analysis and Applications 1 Annales Universitatis Paedagogicae Cracoviensis. Studia Mathematica 1 Revista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A: Matemáticas. RACSAM 1 Fuzzy Information and Engineering 1 Journal of Mahani Mathematical Research Center all top 5 Cited in 20 Fields 158 Difference and functional equations (39-XX) 47 Functional analysis (46-XX) 32 Operator theory (47-XX) 11 Abstract harmonic analysis (43-XX) 10 Group theory and generalizations (20-XX) 6 Topological groups, Lie groups (22-XX) 4 Nonassociative rings and algebras (17-XX) 3 Commutative algebra (13-XX) 3 Linear and multilinear algebra; matrix theory (15-XX) 3 Associative rings and algebras (16-XX) 3 Real functions (26-XX) 3 General topology (54-XX) 2 General and overarching topics; collections (00-XX) 2 Measure and integration (28-XX) 2 Sequences, series, summability (40-XX) 2 Approximations and expansions (41-XX) 1 Combinatorics (05-XX) 1 Number theory (11-XX) 1 Convex and discrete geometry (52-XX) 1 Numerical analysis (65-XX) Citations by Year