Przeglądaj według autora "Kabbaj, Samir"
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On the superstability of the cosine and sine type functional equations
Lehlou, Fouad; Moussa, Mohammed; Roukbi, Ahmed; Kabbaj, Samir (2016)In this paper, we study the superstablity problem of the cosine and sine type functional equations: $f(xσ(y)a) + f(xya) = 2f(x)f(y)$ and $f(xσ(y)a) − f(xya) = 2f(x)f(y)$, where $f : S → C$ is a complex valued function; ... -
Stability of generalized quadratic functional equation on a set of measure zero
Aribou, Youssef; Dimou, Hajira; Chahbi, Abdellatif; Kabbaj, Samir (2015)