Bulletin of the Korean Mathematical Society
( Vol.42 NO.1 / 2005 )
Title
Stability of a generalized quadratic functional equation with Jensen type(eng)
Author
Young Whan Lee
MSC
39B22, 39B72
Publication
Page
57-73 Page
Abstract
1. Introduction
2. Solution of the equation (1)
3. Hyers-Ulam-Rassias stability of the equation (1)
Own Status
Keyword
hyers-ulam-rassias stability, quadratic functional equation, Popoviciu functional equation
Note
Summary
In this paper we solve a generalized quadratic Jensen type functional equation
$$ align &m^2fleft(frac{x + y + z}{m}
ight) + f(x)+f(y)+f(z)\
&= n^2 left[fleft(frac{x + y}{n}
ight) + fleft(frac{y + z}{n}
ight) + fleft(frac{z +
x}{n}
ight)
ight] endalign $$
and prove the stability of this equation in the spirit of Hyers, Ulam, Rassias, and Gu{a}vruta.
Attach
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