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Further results on arithmetic properties of biregular overpartitions

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arxiv 2504.21439 v1 pith:HX5IAQ23 submitted 2025-04-30 math.NT

classification math.NT
keywords congruencessomeco-primeintegersarithmeticdissectionmodulooverpartitions
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abstract

Recently there has been quite a bit of study carried out related to arithmetic properties of overpartitions into non-multiples of two co-prime integers. The paper [19] by Nadji et al. looked into congruences modulo $3$ and powers of $2$ for certain specific pairs of co-prime integers, while the paper [1] by Alanazi et al. investigated some congruences related to some similar and some different pairs of co-prime integers. In this paper we propose some elegant and elementary proofs of a subset of the congruences given in [1] by using only theta function and dissection identities. We also propose a generic method for proving congruences modulo $8$ which doesn't necessarily use any specific $2$-dissection.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Extending Recent Congruence Results on $(\ell,\mu)$-Regular Overpartitions

    math.NT 2025-05 accept novelty 6.0 of 10

    New infinite families of congruences for (2,3)-, (4,3)-, and (4,9)-regular overpartitions are proved via classical q-series dissections.

  2. On Some New Congruences For Biregular Overpartitions

    math.NT 2025-07 conditional novelty 5.0 of 10

    B_{2^alpha,3^beta}(n), the number of overpartitions whose parts avoid multiples of 2^alpha and 3^beta, satisfies new congruence families modulo 4, 8, 6, and 12.

  3. Some Comments on Regular Overpartitions modulo $2^k$

    math.NT 2026-07 conditional novelty 3.0 of 10

    Regular and biregular overpartition counts modulo 2^k are determined by ordinary partitions with fewer than k distinct part sizes, reproducing known modulo-4 results and giving explicit modulo-8 expressions.

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