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Gerstenhaber代数结构关于Tate-Hochschild上同调的不变性

Invariance of the Gerstenhaber algebra structure on Tate-Hochschild cohomology

Zhengfang Wang

摘要:

Keller在1999年证明了代数的Hochschild上同调上的Gerstenhaber代数结构是导出范畴的不变量。在本文中,我们适应他的方法表明,Gerstenhaber代数结构的Tate-Hochschild上同调代数保持下奇异等价的森田型水平,作者在以前的工作中引入的概念。

英文摘要:

Keller proved in 1999 that the Gerstenhaber algebra structure on the Hochschild cohomology of an algebra is an invariant of the derived category. In this paper, we adapt his approach to show that the Gerstenhaber algebra structure on the Tate-Hochschild cohomology of an algebra is preserved under singular equivalences of Morita type with level, a notion introduced by the author in previous work.

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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