3 papers
math.RT2025
Lattice Models for Double Whittaker Polynomials and Motivic Chern Classes
Ben Brubaker, Daniel Bump, Andrew Hardt +1
We will describe solvable lattice models whose partition functions depend on two sets of variables, and that have different connections with th…
math.CO2025
On the Boson-Fermion Correspondence for Factorial Schur Functions
Daniel Bump, Andrew Hardt, Travis Scrimshaw
We give an algebraic (non-analytic) proof of the deformed boson-fermion Fock space construction of Molev's double supersymmetric Schur functions, among other results, from our prev…
math.RT2024
Factorial Fock free fermions
Daniel Bump, Andrew Hardt, Travis Scrimshaw
We use a double shifted power analog of free fermion fields to introduce current operators, Hamiltonians, and vertex operators which are deformed by two families of parameters and…