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arXiv · 2202.09499

A higher Hodge extension of the Feigin-Tsygan Theorem

Wai-Kit Yeung
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Abstract

We show that the extended noncommutative de Rham complex of a cofibrant resolution, when completed at a certain Hodge filtration, is (reduced) quasi-isomorphic to the periodic cyclic complex, while each of its filtration piece is quasi-isomorphic to the negative cyclic complex. This extends a classical result of Feigin and Tsygan, which corresponds to the Hodge degree $0$ part of our quasi-isomorphism. This result is applied to the study of Calabi-Yau categories in \cite{Yeu1, Yeu2}.

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Wai-Kit Yeung. 2022-02-19. A higher Hodge extension of the Feigin-Tsygan Theorem. https://arxiv.org/abs/2202.09499

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