Tagged mapping class groups: Auslander-Reiten translation
Representation Theory
2015-05-27 v3 Geometric Topology
Abstract
We give a geometric realization, the tagged rotation, of the AR-translation on the generalized cluster category associated to a surface with marked points and non-empty boundary, which generalizes Br\"{u}stle-Zhang's result for the puncture free case. As an application, we show that the intersection of the shifts in the 3-Calabi-Yau derived category associated to the surface and the corresponding Seidel-Thomas braid group of is empty, unless is a polygon with at most one puncture (i.e. of type A or D).
Cite
@article{arxiv.1212.0007,
title = {Tagged mapping class groups: Auslander-Reiten translation},
author = {Thomas Brüstle and Yu Qiu},
journal= {arXiv preprint arXiv:1212.0007},
year = {2015}
}
Comments
To appear in Mathematische Zeitschrift