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arXiv 2209.06150hep-th
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AGT对应,(q-)Painlevè方程和矩阵模型

AGT correspondence, (q-)Painlevè equations and matrix models

A. Mironov, V. Mishnyakov, A. Morozov, Z. Zakirova

摘要:

共形块的Painlevè方程是可积性和沃德恒等式的组合推论,它可以在AGT关系的矩阵模型实现中得到显式的揭示.对于$q$ -Virasoro共形块的$q$ -Painlevè方程或$5d$中的AGT对偶规范理论,以及对于普通的Painlevè方程或$4d$中的AGT对偶规范理论,我们都详细地证明了这一点。特别有趣的是从$5d$到$4d$的连续极限及其在八个$τ$ -函数的方程水平上的描述。这些方程的一半是由可积性和另一半由沃德恒等式。

英文摘要:

Painlevè equation for conformal blocks is a combined corollary of integrability and Ward identities, which can be explicitly revealed in the matrix model realization of AGT relations. We demonstrate this in some detail, both for $q$-Painlevè equations for the $q$-Virasoro conformal block, or AGT dual gauge theory in $5d$, and for ordinary Painlevè equations, or AGT dual gauge theory in $4d$. Especially interesting is the continuous limit from $5d$ to $4d$ and its description at the level of equations for eight $τ$-functions. Half of these equations are governed by integrability and another half by Ward identities.

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