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math.RT2019
Colored Vertex Models and Iwahori Whittaker Functions
Ben Brubaker, Valentin Buciumas, Daniel Bump +1
We give a recursive method for computing all values of a basis of Whittaker functions for unramified principal series invariant under an Iwahori or parahoric subgroup of a split re…
math.RT2018
Vertex operators, solvable lattice models and metaplectic Whittaker functions
Ben Brubaker, Valentin Buciumas, Daniel Bump +1
We show that spherical Whittaker functions on an -fold cover of the general linear group arise naturally from the quantum Fock space representation of $U_q(\widehat{\mathfrak{sl…