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Quasimodularity of the kth residual cranks
International Journal of Number Theory ( IF 0.5 ) Pub Date : 2020-07-18 , DOI: 10.1142/s1793042121500019
Thomas Morrill 1 , Aleksander Simonič 2
Affiliation  

We study a family of residual crank generating functions defined on overpartitions, the so-called [Formula: see text]th residual cranks. Specifically, the moment generating functions associated to these cranks exhibit quasimodularity properties which are dependent on the choice of [Formula: see text]. We also show that the second moments of these cranks admit a combinatoric interpretation as weighted overpartition counts. This interpretation gives a refinement to an existing inequality between crank moments of differing modulus [Formula: see text].

中文翻译:

第 k 个剩余曲柄的准模性

我们研究了在过度分区上定义的一组剩余曲柄生成函数,即所谓的[公式:见文本]th剩余曲柄。具体来说,与这些曲柄相关的力矩生成函数表现出准模性质,这取决于 [公式:参见文本] 的选择。我们还表明,这些曲柄的二阶矩可以将组合解释为加权过度分区计数。这种解释对不同模数的曲柄力矩之间的现有不等式进行了改进[公式:见正文]。
更新日期:2020-07-18
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