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arXiv 2505.03429math-phhep-thmath.MPnlin.SI
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Joyce 结构与 Painlevé 方程的极点

Joyce structures and poles of Painlevé equations

Tom Bridgeland, Fabrizio Del Monte

AI总结:

本文利用 Painlevé II 和 III₃ 方程的等单值系统研究类 S[A₁] 的 Joyce 结构,给出 Plebański 函数与 tau 函数的显式公式,并揭示其零截面附近行为可由 Painlevé 方程极点解析刻画,为更一般 Joyce 结构的研究提供范式。

摘要:

Joyce 结构是一类几何结构,最初在与 Donaldson-Thomas 理论相关的研究中出现。其中有一类特殊的例子,称为类 $S[A_1]$,其底流形参数化固定亏格的黎曼曲面,这些曲面带有一个具有固定阶极点的亚纯二次微分。我们利用与 Painlevé II 和 III$_3$ 方程相关联的等单值系统来研究这类 Joyce 结构中的两个例子。我们给出了这些 Joyce 结构的 Plebański 函数的显式公式,并计算了若干相关对象,包括它们的 tau 函数,并明确将其与相应的 Painlevé tau 函数联系起来。我们证明,可以通过 Painlevé 方程的极点解析地研究 Joyce 结构在零截面附近的行为。这一系统化处理为研究黎曼球面上与亚纯二次微分相关联的更一般的 Joyce 结构提供了蓝图。

英文摘要:

Joyce structures are a class of geometric structures that first arose in relation to Donaldson-Thomas theory. There is a special class of examples, called class $S[A_1]$, whose underlying manifold parameterises Riemann surfaces of some fixed genus equipped with a meromorphic quadratic differential with poles of fixed orders. We study two Joyce structures of this type using the isomonodromic systems associated to the Painlevé II and III$_3$ equations. We give explicit formulae for the Plebański functions of these Joyce structures, and compute several associated objects, including their tau functions, which we explicitly relate to the corresponding Painlevé tau functions. We show that the behaviour of the Joyce structure near the zero-section can be studied analytically through poles of Painlevé equations. The systematic treatment gives a blueprint for the study of more general Joyce structures associated to meromorphic quadratic differentials on the Riemann sphere.

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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