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arXiv 1111.7287math.SGmath.DG
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关于殆复流形上精确形式的一个注记

A note on exact forms on almost complex manifolds

Tedi Draghici, Weiyi Zhang

摘要:

利用紧殆复流形$(M^{2n},J)$上的精确形式空间,得到了Donaldson的“驯服到相容”问题的重新表述.在4维空间中,我们证明了$J$容许相容的辛形式当且仅当$J$容许任意给定$J$ -反不变部分的驯服的辛形式.还对$J$修饰的de Rham复合物的上同调作了一些观察。

英文摘要:

Reformulations of Donaldson's "tamed to compatible" question are obtained in terms of spaces of exact forms on a compact almost complex manifold $(M^{2n},J)$. In dimension 4, we show that $J$ admits a compatible symplectic form if and only if $J$ admits tamed symplectic forms with arbitrarily given $J$-anti-invariant parts. Some observations about the cohomology of $J$-modified de Rham complexes are also made.

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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