The orbifold Hochschild product for Fermat hypersurface
The orbifold Hochschild product for Fermat hypersurface
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Fermat 超曲面的 orbifold Hochschild 产品
DOI:
10.1016/j.aim.2023.109186
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发表时间:
2023
影响因子:
1.7
通讯作者:
Huang S
中科院分区:
文献类型:
--
作者:
Huang S
Let G be an abelian group acting on a smooth algebraic variety X. We investigate the product structure and the bigrading on the cohomology of polyvector fields on the orbifold [X/G], as introduced by Căldăraru and Huang. In this paper, we provide many new examples given by quotients of Fermat hypersurfaces, where the product is shown to be associative. This is expected due to the conjectural isomorphism at the level of algebras between the cohomology of polyvector fields and the Hochschild cohomology of orbifolds. We prove this conjecture for the Calabi-Yau Fermat hypersurface orbifold. We also show that for Calabi-Yau orbifolds, the multiplicative bigrading on the cohomology of polyvector fields agrees with what is expected in homological mirror symmetry.
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DOI:
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发表时间:
2010
期刊:
影响因子:
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作者:
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通讯作者:
Kentaro Hori
影响因子:
1.7
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影响因子:
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DOI:
10.1016/j.aim.2021.107683
发表时间:
2019
期刊:
arXiv: Algebraic Geometry
影响因子:
--
作者:
Junwu Tu
通讯作者:
Junwu Tu