Skein Relations for Punctured Surfaces

event Friday, October 4, 2024
access_time 4:00pm (CDT)
room PHSC 1105

Abstract: Cluster algebras are a type of recursively generated commutative ring whose generators (called cluster variables) appear in fixed-size distinguished subsets (called clusters). A particularly approachable type of cluster algebra is that of surface type, which can be modeled using triangulated surfaces. I will discuss joint work with Esther Banaian and Wonwoo Kang, in which we use a combinatorial expansion formula via order ideals of posets to give explicit skein relations for clusters algebras from punctured surfaces. If time permits, I will also discuss some extensions to generalized cluster algebras modeled by triangulated orbifolds. (This talk will assume no prior familiarity with cluster algebras.)


For more information on this event, please contact Roi Docampo.