{ "id": "2406.06224", "version": "v1", "published": "2024-06-10T12:40:23.000Z", "updated": "2024-06-10T12:40:23.000Z", "title": "Arithmetic density and congruences of $\\ell$-regular bipartitions", "authors": [ "Nabin Kumar Meher", "Ankita Jindal" ], "categories": [ "math.NT" ], "abstract": "Let $ B_{\\ell}(n)$ denote the number of $\\ell$-regular bipartitions of $n.$ In this article, we prove that $ B_{\\ell}(n)$ is always almost divisible by $p_i^j$ if $p_i^{2a_i}\\geq \\ell,$ where $j$ is a fixed positive integer and $\\ell=p_1^{a_1}p_2^{a_2}\\ldots p_m^{a_m},$ where $p_i$ are prime numbers $\\geq 5.$ Further, we obtain an infinities families of congruences for $B_3(n)$ and $B_5(n)$ by using Hecke eigen form theory and a result of Newman \\cite{Newmann1959}. Furthermore, by applying Radu and Seller's approach, we obtain an algorithm from which we get several congruences for $B_{p}(n)$, where $p$ is a prime number.", "revisions": [ { "version": "v1", "updated": "2024-06-10T12:40:23.000Z" } ], "analyses": { "subjects": [ "05A17", "11P83" ], "keywords": [ "regular bipartitions", "arithmetic density", "congruences", "hecke eigen form theory", "prime number" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }