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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.QA2025
Based morphisms for characters of quantum symmetric pairs
Stein Meereboer
We study based one-dimensional modules of quantum symmetric pairs over the field . We provide a complete classification of one-dimensional -modules that…