(4k,k)-奇异超拆分数奇偶性的密度结果
Density results for the parity of $(4k,k)$-singular overpartitions
AI总结:
本文研究Andrews引入的(k,i)-奇异超拆分数的奇偶性,给出k为偶数时$\overline{C}_{4k,k}(n)$几乎总是偶数的充分条件,并证明k≤23且k≠19的奇数情形下某些子序列几乎总是偶数。
摘要:
(k,i)-奇异超拆分是Andrews在2015年引入的组合对象,已知其满足模任意与6k互素的素数幂的Ramanujan型同余式。本文考虑n的(k,i)-奇异超拆分数$\overline{C}_{k,i}(n)$的奇偶性。特别地,我们给出了k为偶数时的一个充分条件,使得$\overline{C}_{4k,k}(n)$的值几乎总是偶数。进一步,我们证明对于奇数k≤23且k≠19,$\overline{C}_{4k,k}(n)$的某些子序列几乎总是偶数。
英文摘要:
The $(k,i)$-singular overpartitions, combinatorial objects introduced by Andrews in 2015, are known to satisfy Ramanujan-type congruences modulo any power of prime coprime to $6k$. In this paper we consider the parity of the number $\overline{C}_{k,i}(n)$ of $(k,i)$-singular overpartitions of $n$. In particular, we give a sufficient condition on even values of $k$ so that the values of $\overline{C}_{4k,k}(n)$ are almost always even. Furthermore, we show that for odd values of $k \leq 23$, $k\neq 19$, certain subsequences of $\overline{C}_{4k,k}(n)$ are almost always even.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。