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arXiv · 2508.03971

Extending Congruences for the number of smallest parts in overpartitions with smallest part even

Robson da Silva
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Abstract

In a recent paper, Jin, Liu, and Xia \cite{JLX} presented some modulo 4 congruences for $\overline{spt2}(n)$, the number of smallest parts in the overpartitions of $n$ where the smallest part is even and is not overlined. In this paper, we extend the list of such congruences in two directions. First, we prove some new individual congruences for $\overline{spt2}(n)$. Then, we provide a number of infinite families of Ramanujan-like congruences satisfied by $\overline{spt2}(n)$.

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Robson da Silva. 2025-08-05. Extending Congruences for the number of smallest parts in overpartitions with smallest part even. https://arxiv.org/abs/2508.03971

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