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arXiv 2011.13178math.SG
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扭曲生成函数与近旁拉格朗日猜想

Twisted generating functions and the nearby Lagrangian conjecture

Mohammed Abouzaid, Sylvain Courte, Stéphane Guillermou, Thomas Kragh

AI总结:

本文引入扭曲生成函数概念,结合层论加倍论证与Floer理论,证明了余切丛闭精确拉格朗日子流形的稳定高斯映射诱导同态为零,推进了近旁拉格朗日猜想。

摘要:

我们证明,对于余切丛的闭精确嵌入拉格朗日子流形,由稳定拉格朗日高斯映射诱导的同伦群同态为零。特别地,我们证明该映射对所有球面是零同伦的。为证明此结论,我们引入的关键工具是扭曲生成函数的概念,并通过扩展层理论中发展的加倍论证,证明了每个闭精确拉格朗日均可用此类对象描述。Floer理论与层理论将可出现的扭曲生成函数类型限制在与Waldhausen管空间密切相关的一类中,我们的主要结果由Bökstedt计算管空间有理同伦型的定理得出。

英文摘要:

We prove that, for closed exact embedded Lagrangian submanifolds of cotangent bundles, the homomorphism of homotopy groups induced by the stable Lagrangian Gauss map vanishes. In particular, we prove that this map is null-homotopic for all spheres. The key tool that we introduce in order to prove this is the notion of twisted generating function and we show that every closed exact Lagrangian can be described using such an object, by extending a doubling argument developed in the setting of sheaf theory. Floer theory and sheaf theory constrain the type of twisted generating functions that can appear to a class which is closely related to Waldhausen's tube space, and our main result follows by a theorem of Bökstedt which computes the rational homotopy type of the tube space.

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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