3 papers
math.QA2026
Characters of Quantum Symmetric Pairs
Philip Schlösser
We classify all characters of quantum symmetric pair coideal subalgebras for generalised Satake diagrams of finite and affine type.
math.QA2025
Quantum Matrix Spherical Functions as Orthogonal Polynomials
Stein Meereboer, Philip Schlösser
A general theory of matrix-spherical functions for dual Hopf algebras and right coideal subalgebras is developed. We establish their existence and define their orthogonality relati…
math.RT2023
Intermediate Macdonald Polynomials and Their Vector Versions
Philip Schlösser
Intermediate Macdonald polynomials for an affine root system with fixed origin and finite Weyl group are orthogonal polynomials invariant under a parabolic subgroup $W_J\…