DOI: 10.2969/aspm/08210013
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Some differential complexes within and beyond parabolic geometry

Abstract: 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 paraboli… Show more

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Cited by 13 publications
(27 citation statements)
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“…This complex was found in the four-dimensional case by Smith in 1976 [14]. In higher dimensions, besides [19], it was also independently found by Eastwood and Seshadri [4] (see also [3,5]) who were motivated by the hyperelliptic complex of Rumin in contact geometry [16].…”
Section: Filtered Cohomologies 31 Elliptic Complexes and Associated supporting
confidence: 57%
“…This complex was found in the four-dimensional case by Smith in 1976 [14]. In higher dimensions, besides [19], it was also independently found by Eastwood and Seshadri [4] (see also [3,5]) who were motivated by the hyperelliptic complex of Rumin in contact geometry [16].…”
Section: Filtered Cohomologies 31 Elliptic Complexes and Associated supporting
confidence: 57%
“…To see that the complex is exact, if suffices to recall that the spectral sequence { ⋆ E p,q i ,∂ i } converges to the Dolbeault cohomology. This resolution may be thought of as a Dolbeault analog of the Rumin complex [8,29]. A similar argument gives (6.27) for p > 0.…”
Section: Appendix a Examplesmentioning
confidence: 69%
“…The Rumin operator was also a key tool in the construction of a convolution product on smooth and generalized translation invariant valuations on affine space [5,6], the product of smooth valuations on manifolds [3,14] (note that the operator Q played some role in this case), and the operations of push-forward and pull-back of smooth valuations [2]. Furthermore, the Rumin-de Rham complex appears naturally in the study of invariant differential operators on parabolic geometries [9]. More precisely, the symplectic group G = Sp 2n+2 R acts on the unit sphere S 2n+1 , and the stabilizer is a parabolic subgroup P .…”
Section: Introductionmentioning
confidence: 99%