Stability Problems of Quintic Mappings in Quasi-β-Normed Spaces
We investigate the generalized Hyers-Ulam-Rassias stability problem in quasi-β-normed spaces and then the stability by using a subadditive function for the quintic function f:X→Y such that 2f(2x+y)+2f(2x−y)+f(x+2y)+f(x−2y)=20[f(x+y)+f(x−y)]+90f(...
Main Authors: | In Goo Cho, Dongseung Kang, Heejeong Koh |
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Format: | Article |
Language: | English |
Published: |
SpringerOpen
2010-01-01
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Series: | Journal of Inequalities and Applications |
Online Access: | http://dx.doi.org/10.1155/2010/368981 |
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