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The Hyers-Ulam Stability of a Functional Equation Deriving from Quadratic and Cubic Functions in Quasi-β-normed Spaces 被引量:7
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作者 li guang wang bo liu 《Acta Mathematica Sinica,English Series》 SCIE CSCD 2010年第12期2335-2348,共14页
In this paper, we investigate the Hyers-Ulam stability of the following function equation 2f(2x + y) + 2f(2x - y) = 4f(x + y) + 4f(x - y) + 4f(2x) + f(2y) - Sf(x) - 8f(y) in quasi-β-normed spaces.
关键词 Hyers-Ulam stability quadratic mapping cubic mapping quasi-β-normed spaces (β p)-Banach spaces
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