Journal of Number Theory ( IF 0.7 ) Pub Date : 2021-06-16 , DOI: 10.1016/j.jnt.2021.05.013 Ajit Singh , Rupam Barman
Andrews introduced the singular overpartition function which counts the number of overpartitions of n in which no part is divisible by k and only parts may be overlined. In this article, we study the divisibility properties of and by arbitrary powers of 2 and 3 for infinite families of k. For an infinite family of k, we prove that is almost always divisible by arbitrary powers of 2. We also prove that is almost always divisible by arbitrary powers of 3 for an infinite family of k. Using a result of Ono and Taguchi on nilpotency of Hecke operators, we find infinite families of congruences modulo arbitrary powers of 2 satisfied by and .
中文翻译:
安德鲁斯奇异超分的新密度结果和同余式
Andrews 介绍了奇异的超分函数 它计算n的过度划分的数量,其中没有部分可以被k整除,只有部分可能会被划线。在本文中,我们研究了可分性 和 对于k 的无限族,通过 2 和 3 的任意幂。对于k的无限族,我们证明 几乎总是可以被 2 的任意幂整除。 我们还证明 对于k的无限族,几乎总是可以被 3 的任意幂整除。使用 Ono 和 Taguchi 对 Hecke 算子的幂零性的结果,我们找到了无限的同余族,模 2 的任意幂满足以下条件 和 .