Contact Manifolds with Flexible Fillings

Contact Manifolds with Flexible Fillings
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带柔性填充物的接触歧管

DOI:
10.1007/s00039-020-00524-6
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发表时间:
2016
影响因子:
2.2
通讯作者:
Oleg Lazarev
Oleg Lazarev
中科院分区:
数学1区
文献类型:
--
作者:
Oleg Lazarev

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证明了第一Chern类为零的切触流形的所有柔性Weinstein填充都具有同构的积分上同调。作为一个应用程序,我们表明,在尺寸至少为5的任何几乎接触类,几乎有一个温斯坦填充有无穷多个不同的接触结构。我们还构造了第一个已知的几乎辛形Weinstein域的无限族,其接触边界不是接触形的。这些接触结构的区别是正辛同调,我们证明了柔性填充接触结构是一个接触不变量。关键的一步是增加松散Legendrians的Reeb和弦的程度的程序。
We prove that all flexible Weinstein fillings of a given contact manifold with vanishing first Chern class have isomorphic integral cohomology. As an application, we show that in dimension at least 5 any almost contact class that has an almost Weinstein filling has infinitely many different contact structures. We also construct the first known infinite family of almost symplectomorphic Weinstein domains whose contact boundaries are not contactomorphic. These contact structures are distinguished by positive symplectic homology, which we prove is a contact invariant for flexibly-filled contact structures. The key step is a procedure for increasing the degrees of Reeb chords of loose Legendrians.
DOI: 10.1112/topo.12149
发表时间: 2020
影响因子: 1.1
作者:
Lazarev, Oleg
通讯作者: Lazarev, Oleg
辛同调和 Eilenberg-Steenrod 公理
DOI: 10.2140/agt.2018.18.1953
发表时间: 1953
期刊: arXiv: Symplectic Geometry
影响因子: --
作者:
Cieliebak;Oancea;Alexandru
通讯作者: Alexandru