Singular conformally invariant trilinear forms and generalized Rankin Cohen operators
Abstract
The most singular residues of the standard meromorphic family of trilinear conformally invariant forms on C∞c( Rd) are computed. Their expression involves covariant bidifferential operators (generalized Rankin Cohen operators), for which new formul \ are obtained. The main tool is a Bernstein-Sato identity for the kernel of the forms.
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