Hyers-Ulam-Rassias and Ulam-Gavruta-Rassias stabilities of an additive functional equation in several variables.
Nakmahachalasint, Paisan (2007)
International Journal of Mathematics and Mathematical Sciences
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Nakmahachalasint, Paisan (2007)
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Park, Choonkil, Park, Won-Gil, Najati, Abbas (2009)
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Najati, Abbas, Park, Choonkil (2010)
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Jens Schwaiger (2013)
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First a stability result of Prager-Schwaiger [Prager W., Schwaiger J., Stability of the multi-Jensen equation, Bull. Korean Math. Soc., 2008, 45(1), 133–142] is generalized by admitting more general domains of the involved function and by allowing the bound to be not constant. Next a result by Cieplinski [Cieplinski K., On multi-Jensen functions and Jensen difference, Bull. Korean Math. Soc., 2008, 45(4), 729–737] is discussed. Finally a characterization of the completeness of a normed...
Son, Eunyoung, Lee, Juri, Kim, Hark-Mahn (2010)
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