文章基本信息

标题：Generalized Hyers-Ulam Stability of Quadratic Functional Equations: A Fixed Point Approach
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作者：Choonkil Park
期刊名称：Fixed Point Theory and Applications
印刷版ISSN：1687-1820
电子版ISSN：1687-1812
出版年度：2008
卷号：2008
DOI：10.1155/2008/493751
出版社：Hindawi Publishing Corporation
摘要：
Using the fixed point method, we prove the generalized Hyers-Ulam stability of the quadratic functional equation f ( 2 x + y ) = 4 f ( x ) + f ( y ) + f ( x + y ) − f ( x − y ) in Banach spaces.