{ "id": "2107.05024", "version": "v1", "published": "2021-07-11T11:21:31.000Z", "updated": "2021-07-11T11:21:31.000Z", "title": "The algebra of conjugacy classes of the wreath product of a finite group with the symmetric group", "authors": [ "Omar Tout" ], "comment": "arXiv admin note: text overlap with arXiv:1902.02124", "categories": [ "math.CO", "math.RT" ], "abstract": "For a finite group $G,$ we define the concept of $G$-partial permutation and use it to show that the structure coefficients of the center of the wreath product $G\\wr \\mathcal{S}_n$ algebra are polynomials in $n$ with non-negative integer coefficients. Our main tool is a combinatorial algebra which projects onto the center of the group $G\\wr \\mathcal{S}_n$ algebra for every $n.$ This generalizes the Ivanov and Kerov method to prove the polynomiality property for the structure coefficients of the center of the symmetric group algebra.", "revisions": [ { "version": "v1", "updated": "2021-07-11T11:21:31.000Z" } ], "analyses": { "keywords": [ "wreath product", "finite group", "conjugacy classes", "structure coefficients", "symmetric group algebra" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }