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Diffeomorphism Invariance of Geometric Descriptions of Palatini and Ashtekar Gravity

arXiv:gr-qc/9710095 · doi:10.1016/S0370-2693(97)01468-8

Abstract

In this paper, we explicitly prove the presymplectic forms of the Palatini and Ashtekar gravity to be zero along gauge orbits of the Lorentz and diffeomorphism groups, which ensures the diffeomorphism invariance of these theories.

Latex, 6 pages