Some limit transitions between BC type orthogonal polynomials interpreted on quantum complex Grassmannians

Mathijs S. Dijkhuizen, Jasper V. Stokman

The quantum complex Grassmannian U_q/K_q of rank l is the quotient of the quantum unitary group U_q=U_q(n) by the quantum subgroup K_q=U_q(n-l)xU_q(l). We show that (U_q,K_q) is a…