{ "id": "1511.00711", "version": "v1", "published": "2015-11-02T21:14:10.000Z", "updated": "2015-11-02T21:14:10.000Z", "title": "GL_n(F_q)-analogues of factorization problems in the symmetric group", "authors": [ "Joel Brewster Lewis", "Alejandro H. Morales" ], "comment": "22 pages", "categories": [ "math.CO" ], "abstract": "We consider GL_n(F_q)-analogues of certain factorization problems in the symmetric group S_n: rather than counting factorizations of the long cycle (1, 2, ..., n) given the number of cycles of each factor, we count factorizations of a regular elliptic element given the fixed space dimension of each factor. We show that, as in S_n, the generating function counting these factorizations has attractive coefficients after an appropriate change of basis. Our work generalizes several recent results on factorizations in GL_n(F_q) and also uses a character-based approach. As an application of our results, we compute the asymptotic growth rate of the number of factorizations of fixed genus of a regular elliptic element in GL_n(F_q) into two factors as n goes to infinity. We end with a number of open questions.", "revisions": [ { "version": "v1", "updated": "2015-11-02T21:14:10.000Z" } ], "analyses": { "keywords": [ "factorization problems", "symmetric group", "regular elliptic element", "asymptotic growth rate", "fixed space dimension" ], "note": { "typesetting": "TeX", "pages": 22, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2015arXiv151100711B" } } }