BIMSA > Group Meeting on Algebraic Topology and Its Applications New approaches to Lie algebra weight systems
New approaches to Lie algebra weight systems
Organizers
Feng Chun Lei , Jing Yan Li , Yang Yang Ruan , Jie Wu
Speaker
Zhuo Ke Yang
Time
Wednesday, June 18, 2025 1:00 PM - 2:00 PM
Venue
A3-1a-205
Online
Zoom 435 529 7909 (BIMSA)
Abstract
To a finite type knot invariant, a weight system can be associated, which is a function on chord diagrams satisfying so-called 4-term relations. In particular, a weight system can be associated to any metrized Lie algebra. We extend these Lie algebra weight systems to permutations and provide an recursion for its computation.