Silting reduction and Calabi–Yau reduction of triangulated categories
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- by Osamu Iyama and Dong Yang PDF
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Abstract:
We study two kinds of reduction processes of triangulated categories, that is, silting reduction and Calabi–Yau reduction. It is shown that the silting reduction $\mathcal {T}/\mathsf {thick}\mathcal {P}$ of a triangulated category $\mathcal {T}$ with respect to a presilting subcategory $\mathcal {P}$ can be realized as a certain subfactor category of $\mathcal {T}$, and that there is a one-to-one correspondence between the set of (pre)silting subcategories of $\mathcal {T}$ containing $\mathcal {P}$ and the set of (pre)silting subcategories of $\mathcal {T}/\mathsf {thick}\mathcal {P}$. This result is applied to show that the Amiot–Guo–Keller construction of $d$-Calabi–Yau triangulated categories with $d$-cluster-tilting objects takes silting reduction to Calabi–Yau reduction.References
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Additional Information
- Osamu Iyama
- Affiliation: Graduate School of Mathematics, Nagoya University, Chikusa-ku, Nagoya, 464-8602 Japan
- MR Author ID: 634748
- Email: iyama@math.nagoya-u.ac.jp
- Dong Yang
- Affiliation: Department of Mathematics, Nanjing University, 22 Hankou Road, Nanjing 210093, People’s Republic of China
- MR Author ID: 743635
- Email: yangdong@nju.edu.cn
- Received by editor(s): February 20, 2016
- Received by editor(s) in revised form: January 27, 2017, and February 15, 2017
- Published electronically: May 3, 2018
- Additional Notes: The first author acknowledges financial support from JSPS Grant-in-Aid for Scientific Research (B) 24340004, (C) 23540045, and (S) 22224001.
The second author acknowledges financial support from a JSPS postdoctoral fellowship program (P12318) and from the National Science Foundation of China No. 11371196 and No. 11301272 - © Copyright 2018 American Mathematical Society
- Journal: Trans. Amer. Math. Soc. 370 (2018), 7861-7898
- MSC (2010): Primary 16E35, 18E30, 16G99, 13F60
- DOI: https://doi.org/10.1090/tran/7213
- MathSciNet review: 3852451