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arXiv 2008.02721math.CO
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着色置换群抛物商的符号Mahonian

Signed Mahonian on Parabolic Quotients of Colored Permutation Groups

Sen-Peng Eu, Tung-Shan Fu, Yuan-Hsun Lo

摘要:

本文研究了有色置换群(循环群与对称群的圈积)上具有每个一维特征标的旗主指数的生成多项式,称为符号Mahonian多项式.利用Han和Haglund-Loehr-Remmel的插入引理和Eu等人建立的带符号扩张,本文对各种陪集表示系统,根据子序列的限制,导出了有色置换群的抛物子群的幂等元上的符号Mahonian多项式。这推广了Caselli和Eu等人关于对称群的抛物型幂零的相关工作。作为副产品,我们导出了一个乘积公式,推广了Biagioli关于偶符号置换群上的符号Mahonian的结果。

英文摘要:

We study the generating polynomial of the flag major index with each one-dimensional character, called signed Mahonian polynomial, over the colored permutation group, the wreath product of a cyclic group with the symmetric group. Using the insertion lemma of Han and Haglund-Loehr-Remmel and a signed extension established by Eu et al., we derive the signed Mahonian polynomial over the quotients of parabolic subgroups of the colored permutation group, for a variety of systems of coset representatives in terms of subsequence restrictions. This generalizes the related work over parabolic quotients of the symmetric group due to Caselli as well as to Eu et al. As a byproduct, we derive a product formula that generalizes Biagioli's result about the signed Mahonian on the even signed permutation groups.

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。

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