A generalization of Drygas functional equation

  • A. Charifi Ibn Tofail University.
  • Muaadh Almahalebi Ibn Tofail University.
  • Samir Kabbaj Ibn Tofail University.
Palabras clave: Automorphism group, difference operator, Drygas functional equation, automorfismo de grupos, operador diferencial, ecuación funcional de Drygas.


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.

Biografía del autor

A. Charifi, Ibn Tofail University.
Department of Mathematics, Faculty of Sciences.
Muaadh Almahalebi, Ibn Tofail University.
Department of Mathematics, Faculty of Sciences.
Samir Kabbaj, Ibn Tofail University.
Department of Mathematics, Faculty of Sciences.


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Cómo citar
Charifi, A., Almahalebi, M., & Kabbaj, S. (2017). A generalization of Drygas functional equation. Proyecciones. Journal of Mathematics, 35(2), 159-176. https://doi.org/10.4067/S0716-09172016000200002

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