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arXiv 0811.3112nlin.SI
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具有仿射Weyl群的泛特征标和q-差分潘勒韦方程

Universal character and q-difference Painlevé equations with affine Weyl groups

Teruhisa Tsuda

摘要:

泛特征标是一个多项式附加到一对分区,是一个推广的舒尔多项式。本文引入了一个由普适特征标所满足的q-差分格方程的可积系统,称之为格q-UC族.我们认为它是推广的q-KP和q-UC层次。适当的相似性和层次的周期约简产生类型为$A_{2g+1}^{(1)}$、$(g \geq 1)$、$D_5^{(1)}$和$E_6^{(1)}$的q-差分Painleve方程。作为其结果,一类代数解的q-Painleve方程迅速获得的通用字符的手段。特别是,我们明确地证明了减少程序的情况下,类型$E_6^{(1)}$,通过框架的tau函数的基础上的几何形状的某些合理的表面。

英文摘要:

The universal character is a polynomial attached to a pair of partitions and is a generalization of the Schur polynomial. In this paper, we introduce an integrable system of q-difference lattice equations satisfied by the universal character, and call it the lattice q-UC hierarchy. We regard it as generalizing both q-KP and q-UC hierarchies. Suitable similarity and periodic reductions of the hierarchy yield the q-difference Painleve equations of types $A_{2g+1}^{(1)}$ $(g \geq 1)$, $D_5^{(1)}$, and $E_6^{(1)}$. As its consequence, a class of algebraic solutions of the q-Painleve equations is rapidly obtained by means of the universal character. In particular, we demonstrate explicitly the reduction procedure for the case of type $E_6^{(1)}$, via the framework of tau-functions based on the geometry of certain rational surfaces.

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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