Norm-controlled inversion in weighted convolution algebras
Functional Analysis
2018-09-13 v1
Abstract
Let be a discrete group, let , and let be a weight on . Using the approach from [9], we provide sufficient conditions on a weight for to be a Banach algebra admitting a norm-controlled inversion in the reduced C-algebra of , namely . We show that our results can be applied to various cases including locally finite groups as well as finitely generated groups of polynomial or intermediate growth and a natural class of weights on them. These weights are of the form of polynomial or certain subexponential functions. We also consider the non-discrete case and study the existence of norm-controlled inversion in for some related convolution algebras.
Keywords
Cite
@article{arxiv.1809.04097,
title = {Norm-controlled inversion in weighted convolution algebras},
author = {Ebrahim Samei and Varvara Shepelska},
journal= {arXiv preprint arXiv:1809.04097},
year = {2018}
}