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arXiv 0904.2407math.COmath.RT
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B型和C型Hall-Littlewood多项式的Haglund-Haiman-Loehr型公式

Haglund-Haiman-Loehr Type Formulas for Hall-Littlewood Polynomials of Type B and C

Cristian Lenart

摘要:

在以前的工作中,我们表明,两个显然无关的公式霍尔-利特伍德多项式的类型A,实际上,密切相关。第一个是通过在麦克唐纳多项式的Haglund-Haiman-Loehr公式中专门化q=0而获得的tableau公式。第二个例子是任意有限型霍尔-利特尔伍德多项式的施威公式(由拉姆改写和重新推导)的$A$型实例;施威公式是根据所谓的壁龛行走,它起源于高斯-利特尔曼和作者与波斯特尼科夫关于利特尔曼路径模型的离散对应物的工作。我们证明了,画面公式遵循“压缩”拉姆版本的施韦尔公式。本文通过压缩Schwer公式的相应实例,导出了B型和C型Hall-Littlewood多项式的tableau公式。

英文摘要:

In previous work we showed that two apparently unrelated formulas for the Hall-Littlewood polynomials of type A are, in fact, closely related. The first is the tableau formula obtained by specializing q=0 in the Haglund-Haiman-Loehr formula for Macdonald polynomials. The second is the type $A$ instance of Schwer's formula (rephrased and rederived by Ram) for Hall-Littlewood polynomials of arbitrary finite type; Schwer's formula is in terms of so-called alcove walks, which originate in the work of Gaussent-Littelmann and of the author with Postnikov on discrete counterparts to the Littelmann path model. We showed that the tableau formula follows by "compressing" Ram's version of Schwer's formula. In this paper, we derive tableau formulas for the Hall-Littlewood polynomials of type B and C by compressing the corresponding instances of Schwer's formula.

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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