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arXiv 0902.0250math.ATmath.GT
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具有不变殆复结构的拟流形

Quasitoric Manifolds with Invariant Almost Complex Structure

Andrei Kustarev

摘要:

证明了任何拟度流形$M^{2n}$都有一个$T^n$不变的殆复结构当且仅当$M$有一个正的全定向.特别是,我们表明,所有的障碍存在的$T^n$不变的殆复结构$M^{2n}$产生的基础多面体的上同调,因此是平凡的。

英文摘要:

We prove that any quasitoric manifold $M^{2n}$ admits a $T^n$-invariant almost complex structure if and only if $M$ admits a positive omniorientation. In particular, we show that all obstructions to existence of $T^n$-invariant almost complex structure on $M^{2n}$ arise from cohomology of underlying polytope - and hence are trivial.

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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