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arXiv 2602.21759math.SGmath.CT
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$T^*N$ 的过滤 Fukaya 范畴中纤维的稠密性

Density of fibers for the filtered Fukaya category of $T^*N$

Université Paris-Saclay(巴黎萨克雷大学);Kyiv School of Economics(基辅经济学院)

Stéphane Guillermou, Claude Viterbo, Bingyu Zhang

AI总结:

本文回答了 Biran 和 Cornea 关于余切丛 Fukaya 范畴中纤维的迭代锥的稠密性问题,证明了取稠密的基点集时,余切纤维的迭代锥在过滤 Fukaya 范畴中是稠密的,并在附录中证明了辛流形中精确拉格朗日子流形关于谱距离永远不会是完全有界的。

摘要:

我们回答了 Biran 和 Cornea 关于余切丛的 Fukaya 范畴中纤维的迭代锥的稠密性问题。我们证明,如果取一个稠密的基点集,那么余切纤维的迭代锥在过滤 Fukaya 范畴中是稠密的。在附录中,我们证明了辛流形中精确拉格朗日子流形的空间关于谱距离永远不会是完全有界的(除非它是空的)。这在 $n=1$ 时隐含于 \cite{MCA-VH-CV},并在 \cite{A-B-C} 中对负曲率流形的余切丛得到了证明。

英文摘要:

We answer a question of Biran and Cornea about the density of iterated cones of fibers in the Fukaya category of a cotangent bundle. We prove that indeed if we take a dense set of basepoints, the iterated cones of the cotangent fibres are dense in the Filtered Fukaya category. In an appendix we prove that the space of exact Lagrangians in a symplectic manifold is never totally bounded for the spectral distance (unless it is empty). This was implicit in \cite{MCA-VH-CV} for $n=1$ and proved for cotangent bundles of negatively curved manifolds in \cite{A-B-C}.

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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