Webs and stated skein algebras of surfaces

Seminar: 
Quantum Topology and Field Theory
Event time: 
Monday, November 11, 2024 - 4:30pm
Location: 
KT 101
Speaker: 
Vijay Higgins
Speaker affiliation: 
UCLA
Event description: 

The Jones polynomial of a link can be computed diagrammatically by using skein relations which encode the representation theory of SL(2). By considering the vector space spanned by links drawn on a surface and imposing these skein relations, we obtain an algebra known as the Kauffman bracket skein algebra of the surface. Replacing SL(2) by SL(3) or any other higher rank Lie group gives rise to a new skein algebra involving not only links but also certain graphs called webs. In this talk, we will discuss some of the complications involved with studying skein algebras built from webs on surfaces and then discuss how the use of stated skein algebras helps us get around these.

Special note: 
Seminar talk is supported in part by the Mrs. Hepsa Ely Silliman Memorial Fund.