2 papers
math.RT2020
Hamiltonian reduction for affine Grassmannian slices and truncated shifted Yangians
Joel Kamnitzer, Khoa Pham, Alex Weekes
Generalized affine Grassmannian slices provide geometric realizations for weight spaces of representations of semisimple Lie algebras. They are also Coulomb branches, symplectic du…
math.RT2016
Comultiplication for shifted Yangians and quantum open Toda lattice
Michael Finkelberg, Joel Kamnitzer, Khoa Pham +2
We study a coproduct in type A quantum open Toda lattice in terms of a coproduct in the shifted Yangian of sl_2. At the classical level this corresponds to the multiplication of sc…