Harmonic Analysis on Quantum Complex Hyperbolic Spaces
  In this paper we obtain some results of harmonic analysis on quantum complex hyperbolic spaces. We introduce a quantum analog for the Laplace-Beltrami operator and its radial part. The latter appear to be second order $q$-difference operator, whose eigenfunctions are related to the Al-Salam-Chihara polynomials. We prove a Plancherel type theorem for it. 
Olga Bershtein, Yevgen Kolisnyk
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