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arXiv math/0402189math.SG
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几乎切触轨道折叠的Chen-Ruan上同调

The Chen-Ruan Cohomology of Almost Contact Orbifolds

Fan Ding, Yunfeng Jiang, Jianzhong Pan

摘要:

与几乎复轨道褶皱的Chen-Ruan上同调理论相比,我们研究了几乎切触轨道褶皱的上同调理论。定义了几乎切触轨道的陈阮上同调群。利用几乎复轨道褶皱的方法(见[2]),我们定义了几乎切触轨道褶皱的任意3-多扇区的阻塞丛和Chen-Ruan上同调的Chen-Ruan上积.证明了在此上积下,所有维orbifold上同调群的直和构成一个上同调环。最后我们计算了两个例子。

英文摘要:

Comparing to the Chen-Ruan cohomology theory for the almost complex orbifolds, we study the orbifold cohomology theory for almost contact orbifolds. We define the Chen-Ruan cohomology group of any almost contact orbifold. Using the methods for almost complex orbifolds (see [2]), we define the obstruction bundle for any 3-multisector of the almost contact orbifolds and the Chen-Ruan cup product for the Chen-Ruan cohomology. We also prove that under this cup product the direct sum of all dimensional orbifold cohomology groups constitutes a cohomological ring. Finally we calculate two examples.

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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