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Type: Artigo de periódico
Title: Riemann-Christoffel flows
Author: Letelier, PS
Abstract: A geometric flow based in the Riemann-Christoffel curvature tensor that in two dimensions has some common features with the usual Ricci flow is presented. For n dimensional spaces this new flow takes into account all the components of the intrinsic curvature. For four dimensional Lorentzian manifolds it is found that the solutions of the Einstein equations associated to a 'detonant' sphere of matter, as well, as a Friedman-Roberson-Walker cosmological model are examples of Riemann-Christoffel flows. Possible generalizations are mentioned.
Subject: curvature tensor
Einstein equations
detonant matter
cosmological models
Country: EUA
Editor: Springer/plenum Publishers
Citation: International Journal Of Theoretical Physics. Springer/plenum Publishers, v. 47, n. 5, n. 1312, n. 1315, 2008.
Rights: fechado
Identifier DOI: 10.1007/s10773-007-9565-1
Date Issue: 2008
Appears in Collections:Unicamp - Artigos e Outros Documentos

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