On a new type of stability of a radical quadratic functional equation using Brzdȩk’s fixed point theorem
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DOI: 10.1007/s10474-016-0666-2
Abstract: AbstractUsing a fixed point result and an approach to stability of functional equations presented in [8], we investigate a new type of stability for the radical quadratic functional equation of the form $$ f(\sqrt{x^2+y^2}) =… read more here.
Keywords: stability radical; new type; stability; radical quadratic ... See more keywords