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Stability of a Quartic Functional Equation in Restricted Domains
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نویسنده
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chung j. ,ju y.-m.
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منبع
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journal of function spaces - 2016 - دوره : 2016 - شماره : 0
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چکیده
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Let x be a real normed space and y a banach space and f: x → y. we prove the ulam-hyers stability theorem for the quartic functional equation f (2 x + y) + f (2 x - y) - 4 f (x + y) - 4 f (x - y) - 24 f (x) + 6 f (y) = 0 in restricted domains. as a consequence we consider a measure zero stability problem of the above inequality when f: r → y. © 2016 jaeyoung chung and yu-min ju.
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آدرس
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department of mathematics,kunsan national university,kunsan, South Korea, department of mathematics,kunsan national university,kunsan, South Korea
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Authors
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