Language:
EN
| Published:
27-04-2024
|
Abstract
| pp. 143-154
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.
2024-04-27
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English