Seminario Teoría de Grupos
A marking graph for finite-type Artin groups
Ponente: Kaitlin Ragosta (Brandeis University)Fecha: lunes 19 de mayo de 2025 - 16:00Lugar: Aula 238, Facultad de Ciencias Matemáticas, UCM
Resumen:
Braid groups are examples of both finite-type Artin groups and mapping class groups. One important tool in the study of mapping class groups is the marking graph, a graph whose vertex set consists of certain collections of curves on a surface S and which is quasi-isometric to the mapping class group of S. In this talk, I will recall Masur and Minsky’s definition of the marking graph for surfaces and I will define an analogue of the marking graph which is quasi-isometric to a finite-type Artin group modulo its center.
