Affiliation:
1. National and Kapodistrian University of Athens
2. Moulay Ismail University
3. Ibn Tofail University
Abstract
The aim of this paper is to investigate the stability problem for the pexiderized trigonometric functional equation f₁(xy)+f₂(xσ(y))=2g₁(x)g₂(y), x,y∈G, where G is an arbitrary group, f₁,f₂,g₁ and g₂ are complex valued functions on G and σ is an involution of G. Results of this paper also can be extended to the setting of monoids (that is, a semigroup with identity) that need not be abelian.
Publisher
Sociedade Paranaense de Matematica
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