Publication details

Some differential complexes within and beyond parabolic geometry


BRYANT Robert L. EASTWOOD Michael G. GOVER A. Rod. NEUSSER Katharina

Year of publication 2019
Type Article in Proceedings
Conference Differential Geometry and Tanaka Theory - Differential System and Hypersurface Theory
MU Faculty or unit

Faculty of Science

Keywords Differential complexes; Rumin complex; Parabolic geometry; Bernstein-Gelfand-Gelfand complex
Description For smooth manifolds equipped with various geometric structures, we construct complexes that replace the de Rham complex in providing an alternative fine resolution of the sheaf of locally constant functions. In case that the geometric structure is that of a parabolic geometry, our complexes coincide with the Bernstein-Gelfand-Gelfand complex associated with the trivial representation. However, at least in the cases we discuss, our constructions are relatively simple and avoid most of the machinery of parabolic geometry. Moreover, our method extends to contact and symplectic geometries (beyond the parabolic realm).

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