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arXiv 2609.24091math.CO

带ASEP参数的Askey--Wilson多项式

Askey--Wilson polynomials with ASEP parameters

Younggwang Cho, Donghyun Kim, Jang Soo Kim

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中文总结 AI 辅助

本文通过推导重标度Askey--Wilson多项式系数的归一化分子的显式正组合公式,证明了Rains关于单列分拆的猜想,为先前单行结果提供了对偶对应。

中文摘要 AI 辅助

Koornwinder矩推广了非对称简单排斥过程中出现的Askey--Wilson矩。Rains猜想,在特化$t=q$下,Koornwinder矩的最小分子具有非负整数系数。虽然该猜想的单行情形先前由Corteel、Mandelshtam和Williams利用菱形阶梯表证明了,其对偶情形,即单列情形,仍然未解决。在本文中,我们推导了重标度Askey--Wilson多项式系数的归一化分子的一个封闭且显式正的组合公式。这证明了Rains关于单列分拆的猜想,从而提供了先前结果的精确对偶对应。

英文摘要

Koornwinder moments generalize the Askey--Wilson moments arising in the asymmetric simple exclusion process. Rains conjectured that, under the specialization $t=q$, the minimal numerators of Koornwinder moments have nonnegative integer coefficients. While the one-row case of this conjecture was previously proved by Corteel, Mandelshtam, and Williams using rhombic staircase tableaux, its dual counterpart, the one-column case, has remained open. In this paper, we derive a closed, manifestly positive combinatorial formula for the normalized numerators of the coefficients of the rescaled Askey--Wilson polynomials. This proves Rains' conjecture for one-column partitions, thereby providing the exact dual counterpart to the previous result.

发表机构

  • Sungkyunkwan University(成均馆大学)
  • Ewha Womans University(梨花女子大学)

机构由 AI 辅助整理,请以论文原文为准。

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