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pro vyhledávání: '"SANTOS, GRASIELE B."'
In this manuscript we investigate the intrinsically flat (space-flat) spacetimes as viable cosmological models. We show that they have a natural geometric structure which is suitable to describe inhomogeneous matter distributions forming a periodic p
Externí odkaz:
http://arxiv.org/abs/2203.07926
We analyze the problem of gravitational collapse considering the matching of an exterior region described by the Vaidya's metric and an interior region described by a spherically symmetric shear-free inhomogeneous geometry sourced by a viscous fluid.
Externí odkaz:
http://arxiv.org/abs/1806.09433
Publikováno v:
Gen Relativ Gravit (2014) 46: 1790
We have solved the Einstein-Maxwell equations for a class of isotropic metrics with constant spatial curvature in the presence of magnetic fields. We consider a slight modification of the Tolman averaging relations so that the energy-momentum tensor
Externí odkaz:
http://arxiv.org/abs/1402.3121
Publikováno v:
Phys. Rev. D 89, 023514 (2014)
Recently it has been claimed that the Wheeler-DeWitt quantization of gravity is unable to avoid cosmological singularities. However, in order to make this assertion, one must specify the underlying interpretation of quantum mechanics which has been a
Externí odkaz:
http://arxiv.org/abs/1308.5210
Publikováno v:
JCAP 06 (2015) 013
In a previous work the authors have solved the Einstein equations of General Relativity for a class of metrics with constant spatial curvature, where it was found a non vanishing Weyl tensor in the presence of a primordial magnetic field with an anis
Externí odkaz:
http://arxiv.org/abs/1308.5178
Akademický článek
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Akademický článek
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Autor:
SANTOS, GRASIELE B.1 gbsantos@cbpf.br, KLIPPERT, RENATO2 klippert@unifei.edu.br
Publikováno v:
Twelfth Marcel Grossmann Meeting, The: on Recent Developments in Theoretical & Experimental General Relativity, Astrophysics & Relativistic Field Theories (In 3 Volumes) - Proceedings of the Mg12 Meeting on General Relativity. 2012, p1414-1416. 3p.
