Author/Authors :
Aribou, Y. Department of Mathematics - Faculty of Sciences - University of Ibn Tofail, Morocc , Dimou, H. Department of Mathematics - Faculty of Sciences - University of Ibn Tofail, Morocc , Kabbaj, S. Department of Mathematics - Faculty of Sciences - University of Ibn Tofail, Morocc
Keywords :
Stability , hyperstability , ultrametric space , cubic functional equation