A spherical transform on Schwartz functions on the Heisenberg group associated to the action of U(p,q)
T. Godoy, L. Saal (2006)
Colloquium Mathematicae
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Let 𝓢(Hₙ) be the space of Schwartz functions on the Heisenberg group Hₙ. We define a spherical transform on 𝓢(Hₙ) associated to the action (by automorphisms) of U(p,q) on Hₙ, p + q = n. We determine its kernel and image and obtain an inversion formula analogous to the Godement-Plancherel formula.