Park, Choonkil; Cho, Yeol Je; Cholamjiak, Prasit; Suantai, Suthep Fixed points and orthogonal stability of functional equations in non-Archimedean spaces. (English) Zbl 1364.39024 J. Appl. Funct. Anal. 9, No. 1-2, 25-41 (2014). Reviewer: Ghadir Sadeghi (Sabzevār) MSC: 39B82 39B52 46S10 PDFBibTeX XMLCite \textit{C. Park} et al., J. Appl. Funct. Anal. 9, No. 1--2, 25--41 (2014; Zbl 1364.39024)
Park, Choonkil; Ghaemi, Mohammad Bagher; Majani, Hamid; Gordji, Madjid Eshaghi; Najati, Abbas Fixed points and approximately heptic mappings in non-Archimedean normed spaces. (English) Zbl 1381.39031 Adv. Difference Equ. 2013, Paper No. 209, 10 p. (2013). MSC: 39B82 39B52 46S10 39B72 39B55 PDFBibTeX XMLCite \textit{C. Park} et al., Adv. Difference Equ. 2013, Paper No. 209, 10 p. (2013; Zbl 1381.39031) Full Text: DOI
Lee, Jung Rye; Park, Choonkil; Cho, Yeol Je; Shin, Dong Yun Orthogonal stability of a cubic-quartic functional equation in non-Archimedean spaces. (English) Zbl 1277.39042 J. Comput. Anal. Appl. 15, No. 3, 572-583 (2013). Reviewer: Jacek Chmieliński (Kraków) MSC: 39B82 39B55 39B52 47S10 PDFBibTeX XMLCite \textit{J. R. Lee} et al., J. Comput. Anal. Appl. 15, No. 3, 572--583 (2013; Zbl 1277.39042)
Park, Choonkil; Gordji, Madjid Eshaghi; Ghaemi, Mohammad Bagher; Majani, Hamid Fixed points and approximately octic mappings in non-Archimedean 2-normed spaces. (English) Zbl 1280.39019 J. Inequal. Appl. 2012, Paper No. 289, 12 p. (2012). MSC: 39B82 39B72 46S10 39B52 PDFBibTeX XMLCite \textit{C. Park} et al., J. Inequal. Appl. 2012, Paper No. 289, 12 p. (2012; Zbl 1280.39019) Full Text: DOI
Park, Choonkil; Lee, Jung Rye Approximation of an AQCQ-functional equation and its applications. (English) Zbl 1239.39021 Aust. J. Math. Anal. Appl. 8, No. 1, Article No. 14, 39 p. (2011). MSC: 39B82 39B52 46S10 46S50 PDFBibTeX XMLCite \textit{C. Park} and \textit{J. R. Lee}, Aust. J. Math. Anal. Appl. 8, No. 1, Article No. 14, 39 p. (2011; Zbl 1239.39021) Full Text: Link
Park, Choonkil; Gordji, Madjid Eshaghi; Najati, Abbas Generalized Hyers-Ulam stability of an AQCQ-functional equation in non-Archimedean Banach spaces. (English) Zbl 1213.46074 J. Nonlinear Sci. Appl. 3, No. 4, 272-281 (2010). MSC: 46S10 39B52 39B82 PDFBibTeX XMLCite \textit{C. Park} et al., J. Nonlinear Sci. Appl. 3, No. 4, 272--281 (2010; Zbl 1213.46074) Full Text: DOI EuDML EMIS