Quasimodularity of the $k$th Residual Cranks

Inequalities for the $d$th Residual Crank Moments of Overpartitions

Two analogues of the crank function are defined for overpartitions -- the first residual crank and the second residual crank. This suggests an exploration of crank functions defined for overpartitions whose parts are divisible by an arbitrary $d$. We examine the positive moments of these crank functions while varying $d$ and prove some inequalities.

Another proof of two modulo 3 congruences and another SPT crank for the number of smallest parts in overpartitions with even smallest part

By considering the $M_2$-rank of an overpartition as well as a residual crank, we give another combinatorial refinement of the congruences $\overline{\mbox{spt}}_2(3n)\equiv \overline{\mbox{spt}}_2(3n+1)\equiv 0\pmod{3}$. Here $\overline{\mbox{spt}}_2(n)$ is the total number of occurrences of the smallest parts among the overpartitions of $n$ where the smallest part is even and not overlined. Our proof depends on Bailey's Lemma and the rank difference formulas of Lovejoy and Osburn for the $M_2$-rank of an overpartition. This congruence, along with a modulo $5$ congruence, has previously been …

过划分与无重复奇数部分划分的曲柄的组合解释

Combinatorial Interpretations of Cranks of Overpartitions and Partitions without Repeated Odd Parts

本文为过划分的两个剩余曲柄及无重复奇数部分划分的 $M_2$-曲柄提供组合解释，给出无调整权重的新定义，并揭示其与秩统计量和 Ramanujan 十阶伪 theta 函数的联系。

$t$-核分拆与超分拆的曲柄统计量矩

Moments of the Crank Statistic for $t$-Core Partitions and Overpartitions

本文利用统一矩-迹框架，对$t$-核分拆和超分拆的曲柄统计量建立迹与逆迹公式，并借助完全Bell多项式导出分拆数的显式表达式。