2018/02/06 by Sahami, Amir
#20M18 (Secondary) #43A20 (Primary) #46H05 #FOS: Mathematics #Functional Analysis (math.FA)
paper · doi:10.48550/arxiv.1802.02012
In this paper we introduce a new notion of strong pseudo-amenability for Banach algebras. We study strong pseudo-amenability of some Matrix algebras. Using this tool, we characterize strong pseudo-amenability of ℓ1(S), provided that S is a uniformly locally finite semigroup. As an application we show that for a Brandt semigroup S=M0(G,I), ℓ1(S) is strong pseudo-amenable if and only if G is amenable and I is finite. We give some examples to show the differences of strong pseudo-amenability and other classical notions of amenability.