Braid groups and quiver mutation

Autor: Joseph Grant, Robert J. Marsh
Rok vydání: 2017
Předmět:
Zdroj: Pacific Journal of Mathematics. 290:77-116
ISSN: 1945-5844
0030-8730
Popis: We describe presentations of braid groups of type ADE and show how these presentations are compatible with mutation of quivers, building on work of Barot and Marsh for Coxeter groups. In types A and D these presentations can be understood geometrically using triangulated surfaces. We then give a categorical interpretation of the presentations, with the new generators acting as spherical twists at simple modules on derived categories of Ginzburg dg-algebras of quivers with potential.
Comment: 35 pages; v2 is post referee report
Databáze: OpenAIRE