Resumen de A generalization of Drygas functional equation

A. Charifi, Muaadh Almahalebi, Samir Kabbaj

• We obtain the Solutions of the following Drygas functional equation∑ λ ∈Φ f (x + λy + aλ ) = κf(x)+ ∑ λ ∈Φ f(λy), x, y ∈ Swhere S is an abelian semigroup, G is an abelian group, f ∈ GS, Φ is a finite automorphism group of S with order k, and aλ ∈ S, λ∈Φ.