Khodaei, Hamid On the stability of additive, quadratic, cubic and quartic set-valued functional equations. (English) Zbl 1330.39029 Result. Math. 68, No. 1-2, 1-10 (2015). Reviewer: Jacek Chmieliński (Kraków) MSC: 39B82 39B52 54C60 39B55 PDF BibTeX XML Cite \textit{H. Khodaei}, Result. Math. 68, No. 1--2, 1--10 (2015; Zbl 1330.39029) Full Text: DOI OpenURL
Takahasi, Sin-Ei; Tsukada, Makoto; Miura, Takeshi; Takagi, Hiroyuki; Tanahashi, Kotaro Ulam type stability problems for alternative homomorphisms. (English) Zbl 1372.39033 J. Inequal. Appl. 2014, Paper No. 228, 13 p. (2014). MSC: 39B82 47H10 PDF BibTeX XML Cite \textit{S.-E. Takahasi} et al., J. Inequal. Appl. 2014, Paper No. 228, 13 p. (2014; Zbl 1372.39033) Full Text: DOI OpenURL
Brzdȩk, Janusz; Popa, Dorian; Xu, Bing Remarks on stability and non-stability of the linear functional equation of the first order. (English) Zbl 1334.39057 Appl. Math. Comput. 238, 141-148 (2014). MSC: 39B82 PDF BibTeX XML Cite \textit{J. Brzdȩk} et al., Appl. Math. Comput. 238, 141--148 (2014; Zbl 1334.39057) Full Text: DOI OpenURL
Badora, Roman; Brzdȩk, Janusz Fixed points of a mapping and Hyers-Ulam stability. (English) Zbl 1311.39035 J. Math. Anal. Appl. 413, No. 1, 450-457 (2014). MSC: 39B82 39B52 PDF BibTeX XML Cite \textit{R. Badora} and \textit{J. Brzdȩk}, J. Math. Anal. Appl. 413, No. 1, 450--457 (2014; Zbl 1311.39035) Full Text: DOI OpenURL
Brzdȩk, Janusz; Cădariu, Liviu; Ciepliński, Krzysztof Fixed point theory and the Ulam stability. (English) Zbl 1314.39029 J. Funct. Spaces 2014, Article ID 829419, 16 p. (2014). MSC: 39B82 47H10 PDF BibTeX XML Cite \textit{J. Brzdȩk} et al., J. Funct. Spaces 2014, Article ID 829419, 16 p. (2014; Zbl 1314.39029) Full Text: DOI OpenURL
Brzdęk, Janusz Hyperstability of the Cauchy equation on restricted domains. (English) Zbl 1313.39037 Acta Math. Hung. 141, No. 1-2, 58-67 (2013). Reviewer: Henrik Stetkaer (Aarhus) MSC: 39B82 39B52 PDF BibTeX XML Cite \textit{J. Brzdęk}, Acta Math. Hung. 141, No. 1--2, 58--67 (2013; Zbl 1313.39037) Full Text: DOI OpenURL
Brzdęk, Janusz; Chudziak, Jacek; Páles, Zsolt A fixed point approach to stability of functional equations. (English) Zbl 1236.39022 Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 74, No. 17, 6728-6732 (2011). Reviewer: Themistocles M. Rassias (Athens) MSC: 39B22 PDF BibTeX XML Cite \textit{J. Brzdęk} et al., Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 74, No. 17, 6728--6732 (2011; Zbl 1236.39022) Full Text: DOI OpenURL
Brzdȩk, Janusz; Popa, Dorian; Xu, Bing Selections of set-valued maps satisfying a linear inclusion in a single variable. (English) Zbl 1205.39025 Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 74, No. 1, 324-330 (2011). Reviewer: Jacek Chmieliński (Kraków) MSC: 39B82 54C65 39B52 39B62 54C60 PDF BibTeX XML Cite \textit{J. Brzdȩk} et al., Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 74, No. 1, 324--330 (2011; Zbl 1205.39025) Full Text: DOI OpenURL
Brzdȩk, Janusz; Popa, Dorian; Xu, Bing On approximate solutions of the linear functional equation of higher order. (English) Zbl 1204.65147 J. Math. Anal. Appl. 373, No. 2, 680-689 (2011). Reviewer: Jan Sieber (Portsmouth) MSC: 65Q20 39B12 39B82 PDF BibTeX XML Cite \textit{J. Brzdȩk} et al., J. Math. Anal. Appl. 373, No. 2, 680--689 (2011; Zbl 1204.65147) Full Text: DOI OpenURL
Miheţ, D. The probabilistic stability for a functional equation in a single variable. (English) Zbl 1212.39036 Acta Math. Hung. 123, No. 3, 249-256 (2009). Reviewer: Gyula Maksa (Debrecen) MSC: 39B52 39B82 47H10 54E70 PDF BibTeX XML Cite \textit{D. Miheţ}, Acta Math. Hung. 123, No. 3, 249--256 (2009; Zbl 1212.39036) Full Text: DOI OpenURL