64 citations · 442 across the 50 of their papers we have counts for
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A holonomy characterisation of Fefferman spaces
Andreas Cap, A. Rod Gover
We prove that Fefferman spaces, associated to non--degenerate CR structures of hypersurface type, are characterised, up to local conformal isometry, by the existence of a parallel…
CR-Tractors and the Fefferman Space
Andreas Cap, A. Rod Gover
We develop the natural tractor calculi associated to conformal and CR structures as a fundamental tool for the study of Fefferman's construction of a canonical conformal class on t…
Overdetermined systems, conformal geometry, and the BGG complex
Andreas Cap
This is an expanded version of a series of two lectures given at the IMA summer program "Symmetries and Overdetermined Systems of Partial Differential Equations". The main part of…
On left invariant CR structures on SU(2)
Andreas Cap
There is a well known one--parameter family of left invariant CR structures on . We show how purely algebraic methods can be used to explicitly compute the canonica…