On entropy of spherical twists
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- by Genki Ouchi; with an appendix by Arend Bayer PDF
- Proc. Amer. Math. Soc. 148 (2020), 1003-1014 Request permission
Abstract:
In this paper, we compute categorical entropy of spherical twists. In particular, we prove that the Gromov–Yomdin-type conjecture holds for spherical twists. Moreover, we construct counterexamples of Gromov–Yomdin type conjecture for K3 surfaces modifying Fan’s construction for even higher-dimensional Calabi–Yau manifolds.
The appendix, by Arend Bayer, shows the nonemptiness of complements of a number of spherical objects in the derived categories of K3 surfaces.
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Additional Information
- Genki Ouchi
- Affiliation: Graduate School of Mathematical Sciences, University of Tokyo, Meguro-ku, Tokyo 153-8914, Japan
- Address at time of publication: RIKEN Interdisciplinary Theoretical and Mathematical Sciences Program, 2F Main Research Building, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- MR Author ID: 1205200
- Email: genki.oouchi@gmail.com
- Arend Bayer
- Affiliation: School of Mathematics and Maxwell Institute, University of Edinburgh, James Clerk Maxwell Building, Peter Guthrie Tait Road, Edinburgh, EH9 3FD, United Kingdom
- MR Author ID: 728427
- Email: arend.bayer@ed.ac.uk
- Received by editor(s): September 27, 2017
- Received by editor(s) in revised form: July 9, 2019
- Published electronically: October 18, 2019
- Additional Notes: This work was supported by Grant-in-Aid for JSPS Research Fellow 15J08505.
- Communicated by: Lev Borisov
- © Copyright 2019 American Mathematical Society
- Journal: Proc. Amer. Math. Soc. 148 (2020), 1003-1014
- MSC (2010): Primary 14F05
- DOI: https://doi.org/10.1090/proc/14762
- MathSciNet review: 4055930