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首页> 外文期刊>Journal of the Mathematical Society of Japan >Reduction of generalized Calabi-Yau structures
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Reduction of generalized Calabi-Yau structures

机译:简化广义卡拉比丘结构

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摘要

A generalized Calabi-Yau structure is a geometrical structure on a manifold which generalizes both the concept of the Calabi-Yau structure and that of the symplectic one. In view of a result of Lin and Tolman in generalized complex cases, we introduce in this paper the notion of a generalized moment map for a compact Lie group action on a generalized Calabi-Yau manifold and construct a reduced generalized Calabi-Yau structure on the reduced space. As an application, we show some relationship between generalized moment maps and the Bergman kernels, and prove the Duistermaat-Heckman formula for a torus action on a generalized Calabi-Yau manifold.
机译:广义的Calabi-Yau结构是流形上的几何结构,它概括了Calabi-Yau结构和辛结构的概念。鉴于Lin和Tolman在广义复杂情况下的结果,我们在本文中介绍了针对广义Calabi-Yau流形上的紧Lie群作用的广义矩图的概念,并在其上构造了简化的广义Calabi-Yau结构。减少空间。作为一种应用,我们展示了广义矩图与Bergman核之间的某些关系,并证明了在广义Calabi-Yau流形上的环面作用的Duistermaat-Heckman公式。

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