Fuzzy Stability of a Quadratic-Additive Functional Equation

We investigate a fuzzy version of stability for the functional equation f(x+y+z+w) +2f(x)+2f(y)+2f(z)+2f(w)-f(x+y)-f(x+z)-f(x+w)-f(y+z)-f(y+w)-f(z+w)=0.

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Bibliographic Details
Published in:International Journal of Mathematics and Mathematical Sciences 2011, Vol.2011 (2011), p.807-822-068
Main Authors: Jin, Sun Sook, Lee, Yang-Hi
Format: Article
Language:English
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Summary:We investigate a fuzzy version of stability for the functional equation f(x+y+z+w) +2f(x)+2f(y)+2f(z)+2f(w)-f(x+y)-f(x+z)-f(x+w)-f(y+z)-f(y+w)-f(z+w)=0.
ISSN:0161-1712
1687-0425
DOI:10.1155/2011/504802