Article ID Journal Published Year Pages File Type
10427063 Nonlinear Analysis: Theory, Methods & Applications 2005 12 Pages PDF
Abstract
The purpose of this paper is to solve the stability problem of Ulam for an approximate mapping f:A→B of the following quadratic functional equation of Euler-Lagrange(a+b)aQ(x)+(a+b)bQ(y)=Q(ax+by)+abQ(x-y)for all x,y∈A with A and B linear spaces.
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Physical Sciences and Engineering Engineering Engineering (General)
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Ulam stability problem for quadratic mappings of Euler-Lagrange
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