{ "id": "2411.11404", "version": "v1", "published": "2024-11-18T09:27:32.000Z", "updated": "2024-11-18T09:27:32.000Z", "title": "Arithmetic properties of MacMahon-type sums of divisors", "authors": [ "James A. Sellers", "Roberto Tauraso" ], "categories": [ "math.NT", "math.CO" ], "abstract": "In this paper, we prove several new infinite families of Ramanujan--like congruences satisfied by the coefficients of the generating function $U_t(a,q)$ which is an extension of MacMahon's generalized sum-of-divisors function. As a by-product, we also show that, for all $n\\geq 0$, $\\overline{B}_3(15n+7)\\equiv 0 \\pmod{5}$ where $\\overline{B}_3(n)$ is the number of almost $3$-regular overpartitions of $n$.", "revisions": [ { "version": "v1", "updated": "2024-11-18T09:27:32.000Z" } ], "analyses": { "subjects": [ "11P83", "11P81", "05A17" ], "keywords": [ "arithmetic properties", "macmahon-type sums", "macmahons generalized sum-of-divisors function", "infinite families", "regular overpartitions" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }