{ "id": "2103.04929", "version": "v1", "published": "2021-03-08T17:43:00.000Z", "updated": "2021-03-08T17:43:00.000Z", "title": "Banach Convolution Modules of Group Algebras on Covariant Functions of Characters of Normal Subgroups", "authors": [ "Arash Ghaani Farashahi" ], "comment": "arXiv admin note: text overlap with arXiv:2102.08901", "categories": [ "math.FA" ], "abstract": "This paper investigates structure of Banach convolution modules induced by group algebras on covariant functions of characters of closed normal subgroups. Let $G$ be a locally compact group with the group algebra $L^1(G)$ and $N$ be a closed normal subgroup of $G$. Suppose that $\\xi:N\\to\\mathbb{T}$ is a continuous character, $1\\le p<\\infty$ and $L_\\xi^p(G,N)$ is the $L^p$-space of all covariant functions of $\\xi$ on $G$. It is shown that $L^p_\\xi(G,N)$ is a Banach $L^1(G)$-module. We then study convolution module actions of group algebras on covariant functions of characters for the case of canonical normal subgroups in semi-direct product groups.", "revisions": [ { "version": "v1", "updated": "2021-03-08T17:43:00.000Z" } ], "analyses": { "subjects": [ "43A15", "43A20", "43A85" ], "keywords": [ "banach convolution modules", "covariant functions", "group algebra", "closed normal subgroup", "study convolution module actions" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }