Cohomology and MP Spacetimes

Details Cohomology and MP Spacetimes Cohomology and MP Spacetimes

2008-03-11

arxiv.org/abs/0803.1673v1

Physics

Mathematical Physics

16 pages

Scientific paper

This paper pursues a cohomological formulation for gravitation in which gravity might be expressed in terms of a gravitational potential, much in the spirit of electrodynamics. To this end we introduce a cochain complex consisting of $(n+2)$-tensors, symmetric in two indices and skew-symmetric in the remaining $n$ indices. The cohomology of the complex is shown to be isomorphic to the \v{C}ech cohomology of an appropriately defined sheaf of functions. Furthermore, it is demonstrated that in isotropic coordinates MP spacetimes as well as the Schwarzschild black hole may be thusly represented, that is, by means of the coboundary of a potential, as defined by the differential operator of the complex.

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