Higher spin representations of the Yangian of sl_2 and R-matrices

Prof. Yaping Yang
2024-08-28 9:30-10:30
MCM410

Speaker: Prof. Yaping Yang (University of Melbourne)
Time: 9:30-10:30  August 282024 (Wednesday)
Venue: MCM410
Title: Higher spin representations of the Yangian of sl_2 and R-matrices
Abstract: For the Yangian of sl_2, higher spin representations are tensor products of the evaluation pullback of the $\ell_i+1$-dimensional irreducible representations of sl_2, where $\ell_i$ are the highest weights. In my talk, I will give a geometric realization of the higher spin representations in terms of the critical cohomology of representations of the quiver with potential of Bykov and Zinn-Justin. I will also talk about the construction of R-matrices via the lattice model and the weight functions. This is based on my joint work with Paul Zinn-Justin.