Decorated marked surfaces II: Intersection numbers and dimensions of Homs
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- by Yu Qiu and Yu Zhou PDF
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Abstract:
We study derived categories arising from quivers with potential associated to a decorated marked surface $\mathbf {S}_\bigtriangleup$, in the sense taken in a paper by Qiu. We prove two conjectures from Qiu’s paper in which, under a bijection between certain objects in these categories and certain arcs in $\mathbf {S}_\bigtriangleup$, the dimensions of morphisms between these objects equal the intersection numbers between the corresponding arcs.References
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Additional Information
- Yu Qiu
- Affiliation: Yau Mathematical Sciences Center, Tsinghua University, 100084 Beijing, People’s Republic of China
- MR Author ID: 868573
- Email: yu.qiu@bath.edu
- Yu Zhou
- Affiliation: Yau Mathematical Sciences Center, Tsinghua University, 100084 Beijing, People’s Republic of China
- MR Author ID: 868507
- Email: yuzhoumath@gmail.com
- Received by editor(s): April 11, 2017
- Received by editor(s) in revised form: March 26, 2018
- Published electronically: October 22, 2018
- Additional Notes: The work was supported by the Research Council of Norway, Grant No. NFR:231000, and was supported by RGC Grant No. 14300817 (Hong Kong)
- © Copyright 2018 American Mathematical Society
- Journal: Trans. Amer. Math. Soc. 372 (2019), 635-660
- MSC (2010): Primary 16E45; Secondary 18E30
- DOI: https://doi.org/10.1090/tran/7598
- MathSciNet review: 3968782