On character amenability of semigroup algebras |
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Authors: | Ali Ghaffari |
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Affiliation: | 1. Department of Mathematics, Semnan University, Semnan, Iran
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Abstract: | Let S be a foundation locally compact topological semigroup, and let M a (S) be the space of all measures μ∈M(S) for which the maps x?|μ|?δ x and x?|μ|?δ x from S into M(S) are weakly continuous. The purpose of this article is to develop a notion of character amenability for semigroup algebras. The main results concern the χ-amenability of M a (S). We give necessary and sufficient conditions for the existence of a left χ-mean on M a (S)?. |
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