A Kannappan-Cosine Functional Equation on Semigroups

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, y ∈ S, where S is a semigroup and z0 is a fixed element in S.

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Bibliographic Details
Main Authors: Jafar Ahmed, Ajebbar Omar, Elqorachi Elhoucien
Format: Article
Language:English
Published: Sciendo 2024-04-01
Series:Annales Mathematicae Silesianae
Subjects:
Online Access:https://doi.org/10.2478/amsil-2024-0012
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