English

A note on essentially left $\phi$-contractible Banach algebras

Functional Analysis 2019-07-12 v1

Abstract

In this note, we show that \cite[Corollary 3.2]{sad} is not always true. In fact, we characterize essential left ϕ\phi-contractibility of the the group algebras in the term of compactness of its related locally compact group. Also we show that for any compact commutative group GG, L2(G)L^{2}(G) is always essentially left ϕ\phi-contractible. We discuss essential left ϕ\phi-contractibility of some Fourier algebras.

Keywords

Cite

@article{arxiv.1907.05225,
  title  = {A note on essentially left $\phi$-contractible Banach algebras},
  author = {A. Sahami and I. Almasi},
  journal= {arXiv preprint arXiv:1907.05225},
  year   = {2019}
}
R2 v1 2026-06-23T10:18:31.888Z