Solutions of the Einstein field equations for a bounded and finite discontinuous source, and its generalization: Metric matching conditions and jumping effects

Autor: Juan Antonio Morales-Lladosa, Ramon Lapiedra

Publikováno v: Lapiedra Civera, Ramón Morales Lladosa, Juan Antonio 2019 Solutions of the Einstein field equations for a bounded and finite discontinuous source, and its generalization: Metric matching conditions and jumping effects Physical Review D 100 6 064045-1 064045-10
RODERIC. Repositorio Institucional de la Universitat de Valéncia
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We consider the metrics of the General Relativity, whose energy-momentum tensor has a bounded support where it is continuous except for a finite step across the corresponding boundary surface. As a consequence, the first derivative of the metric acro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::15242cc71736010f04095b35a948fe53
https://doi.org/10.1103/physrevd.100.064045

Cosmic censorship conjecture in some matching spherical collapsing metrics

Autor: Juan Antonio Morales-Lladosa, Ramon Lapiedra

Publikováno v: Lapiedra Civera, Ramón Morales Lladosa, Juan Antonio 2017 Cosmic censorship conjecture in some matching spherical collapsing metrics Physical Review D 95 064025-1 064025-11
RODERIC. Repositorio Institucional de la Universitat de Valéncia
instname

A physically plausible Lema{\^{\i}}tre-Tolman-Bondi collapse in the marginally bound case is considered. By "physically plausible" we mean that the corresponding metric is ${\cal C}^1$ matched at the collapsing star surface and further that its {\em

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0689e236ea64b8abc66a5c5fbe783e30
http://hdl.handle.net/10550/68480

Intrinsic vanishing of energy and momenta in a universe

Autor: Juan Antonio Morales-Lladosa, Ramon Lapiedra

Publikováno v: General Relativity and Gravitation. 44:367-389

We present a new approach to the question of properly defining energy and momenta for non asymptotically Minkowskian spaces in general relativity, in the case where these energy and momenta are conserved. In order to do this, we first prove that ther

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::66030d178de86b5cbb781b2f2fe85670
https://doi.org/10.1007/s10714-011-1283-6

Stability of the intrinsic energy vanishing in the Schwarzschild metric under a slow rotation

Autor: Juan Antonio Morales-Lladosa, Juan M. Aguirregabiria, Ramon Lapiedra

Publikováno v: Aguirregabiria, Juan M. Lapiedra Civera, Ramón Morales Lladosa, Juan Antonio 2014 Stability of the intrinsic energy vanishing in the Schwarzschild metric under slow rotation General Relativity and Gravitation 46 6 1744-1 1744-10
RODERIC. Repositorio Institucional de la Universitat de Valéncia
instname

The linearized Kerr metric is considered and put in some Gauss coordinates which are further {\em intrinsic} ones. The linear and angular 4-momenta of this metric are calculated in these coordinates and the resulting value is just zero. Thus, the glo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4a5b677bb17338245715ed4710b21b0
https://doi.org/10.1007/s10714-014-1744-9

On the Uniqueness of the Energy and Momenta of an Asymptotically Minkowskian Space-Time: The Case of the Schwarzschild Metric

Autor: Juan Antonio Morales-Lladosa, Ramon Lapiedra

Publikováno v: Springer Proceedings in Mathematics & Statistics ISBN: 9783642401565

Some theorems about the uniqueness of the energy of asymptotically Minkowskian spaces are recalled. The suitability of almost everywhere Gauss coordinates to define some kind of physical energy in these spaces is commented. Schwarzschild metric, when

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::35f81b889c68b94467c703f3f0e554d8
https://doi.org/10.1007/978-3-642-40157-2_41