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arXiv · 1408.2678

Silting reduction and Calabi--Yau reduction of triangulated categories

Osamu Iyama·Dong Yang
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Abstract

It is shown that the silting reduction $\ct/\thick\cp$ of a triangulated category $\ct$ with respect to a presilting subcategory $\cp$ can be realized as a certain subfactor category of $\ct$, and that there is a one-to-one correspondence between the set of (pre)silting subcategories of $\ct$ containing $\cp$ and the set of (pre)silting subcategories of $\ct/\thick\cp$. This is analogous to a result for Calabi-Yau reduction. This result is applied to show that Amiot-Guo-Keller's construction of $d$-Calabi-Yau triangulated categories with $d$-cluster-tilting objects takes silting reduction to Calabi-Yau reduction.

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BibTeXRIS

Osamu Iyama, Dong Yang. 2014-08-12. Silting reduction and Calabi--Yau reduction of triangulated categories. https://arxiv.org/abs/1408.2678

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