NDLI: Freud’s Identity of Differential Geometry, the Einstein-Hilbert Equations and the Vexatious Problem of the Energy-Momentum Conservation in GR

Content Provider	Springer Nature Link
Author	tte Cuello, Eduardo A. Rodrigues, Waldyr A.
Copyright Year	2008
Abstract	We reveal in a rigorous mathematical way using the theory of differential forms, here viewed as sections of a Clifford bundle over a Lorentzian manifold, the true meaning of Freud’s identity of differential geometry discovered in 1939 (as a generalization of results already obtained by Einstein in 1916) and rediscovered in disguised forms by several people. We show moreover that contrary to some claims in the literature there is not a single (mathematical) inconsistency between Freud’s identity (which is a decomposition of the Einstein indexed 3-forms $$*{\mathcal{G}^{a}}$$ in two gauge dependent objects) and the field equations of General Relativity. However, as we show there is an obvious inconsistency in the way that Freud’s identity is usually applied in the formulation of energy-momentum “conservation laws” in GR. In order for this paper to be useful for a large class of readers (even those ones making a first contact with the theory of differential forms) all calculations are done with all details (disclosing some of the “tricks of the trade” of the subject).
Ending Page	145
Page Count	33
Starting Page	113
File Format	PDF
ISSN	01887009
e-ISSN	16614909
Journal	Advances in Applied Clifford Algebras
Issue Number	1
Volume Number	19
Language	English
Publisher	SP Birkhäuser Verlag Basel
Publisher Date	2008-08-13
Publisher Place	Basel
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Mathematical Methods in Physics Freud identity Clifford algebras, spinors Mathematical and Computational Physics general relativity Applications of Mathematics Gravitational energy and conservation laws; groups of motions Physics energy-moementum conservation problem
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics

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