Published: 2024-04-27

A Kannappan-cosine functional equation on semigroups

Ahmed Jafar , Omar Ajebbar Logo ORCID , Elhoucien Elqorachi

Abstract

In this paper we determine the complex-valued solutions of the Kannappan-cosine functional equation g(xyz0) = g(x)g(y) − f(x)f(y), x,yS, where S is a semigroup and z0 is a fixed element in S.

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Citation rules

Jafar, A., Ajebbar, O., & Elqorachi, E. (2024). A Kannappan-cosine functional equation on semigroups. Annales Mathematicae Silesianae. Retrieved from https://journals.us.edu.pl/index.php/AMSIL/article/view/17430

2024
Published: 2024-01-18


ISSN: 0860-2107
eISSN: 2391-4238
Ikona DOI 10.1515/amsil

Publisher
University of Silesia Press

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