On the stability of a functional equation deriving from additive and quadratic functions

被引：9
|
作者：
Wang Liguang [1 ]
Li Jing [1 ]
机构：
[1] Qufu Normal Univ, Sch Math Sci, Qufu 273165, Shandong, Peoples R China
来源：
ADVANCES IN DIFFERENCE EQUATIONS | 2012年
关键词：
additive mapping; quadratic mapping; quasi-beta-normed spaces; Hyers-Ulam stability;
D O I：
10.1186/1687-1847-2012-98
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
In this article, we investigate the Hyers-Ulam stability of the following functional equation f(x + 2y) + f(x - 2y) = f(x + y) + f(x - y) + 3f(2y) - 6f(y) on quasi-beta-normed spaces.
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页数：12
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