engleski

Double cells for unitary groups

Let K be the complexification of a maximal compact subgroup of U(p, q). We prove that the associated variety of an irreducible Harish-Chandra module for U(p, q) with trivial infinitesimal character is the closure of a single nilpotent orbit.

semisimple Lie group; Harish-Chandra module; associated variety; double cell

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