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$q$-Whittaker与修正Hall-Littlewood多项式不同组合模型之间的双射

Bijections between different combinatorial models for $q$-Whittaker and modified Hall-Littlewood polynomials

T V Ratheesh

AI总结:

本文为$q$-Whittaker和修正Hall-Littlewood多项式的两种组合公式所诱导的参数集构造保持内容和主指标的双射,并借助charge/cocharge理论证明其正确性。

摘要:

我们考虑由修正Macdonald多项式特殊化产生的$q$-Whittaker和修正Hall-Littlewood多项式的单项式展开。Haglund、Haiman和Loehr以及Ayyer、Mandelshtam和Martin给出的后者的两个组合公式在每种情况下都产生两个不同的参数化集合。我们构造了这些参数化集合之间的双射,这些双射保持内容和主指标统计量。我们将主指标与适当单词的charge或cocharge等同起来,并利用Lascoux-Schü tzenberger和Killpatrick对后者的描述来证明我们的双射具有所期望的性质。

英文摘要:

We consider the monomial expansion of the $q$-Whittaker and modified Hall-Littlewood polynomialsarising from specialization of the modified Macdonald polynomial. The two combinatorial formulas for the latter due to Haglund, Haiman, and Loehr and Ayyer, Mandelshtam and Martin give rise to two different parameterizing sets in each case. We produce bijections between the parameterizing sets which preserve the content and major index statistics. We identify the major index with the charge or cocharge of appropriate words and use descriptions of the latter due to Lascoux-Sch$\ddot{\text{u}}$tzenberger and Killpatrick to show that our bijections have the desired properties.

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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