Navegação Centro de Física Fundamental (CFF) por assunto "Relatividad general"
Itens para a visualização no momento 1-15 of 15
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Comment on Ricci Collineations of static spherically symmetric spacetimes
(SABER ULA, 2006-01-26)Comment on Ricci Collineations of static spherically symmetric spacetimes (Núñez, Luis; Contreras, Gerardo; Percoco, Umberto; Bertolotti, Ricardo; Carot, J.) Abstract We present a counter example to a theorem given ... -
Curvature singularity of the distributional BTZ black hole geometry
(SABER ULA, 2005-05-25)Curvature singularity of the distributional BTZ black hole geometry Pantoja, Nelson; Rago, Héctor; Rodríguez, R.O. Abstract For the non-rotating BTZ black hole, the distributional curvature ... -
Distributional sources in general relativity:
(SABER ULA, 2003-07-04)Distributional sources in general relativity: Two point-like examples revisited (Pantoja, Nelson; Rago, Hector) Abstract A regularization procedure, that allows one to relate singularities of curvature to those ... -
Energy-momentum tensor valued distributions for the Schwarzschild and Reissner-Nordstrom geometries
(SABER ULA, 2003-07-04)Energy-momentum tensor valued distributions for the Schwarzschild and Reissner-Nordstrom geometries (Pantoja, Nelson; Rago, Hector) Abstract An approach to computing, withing the framework of distribution theory, ... -
Entrevista Hoy Viernes
(SABER ULA, 2003-07-14) -
Nonlocal equation of state in general relativistic radiating spheres
(SABER ULA, 2006-01-26)Nonlocal equation of state in general relativistic radiating spheres (Núñez, Luis; Hernández, Hector; Percoco, Umberto) Abstract We show that under particular circumstances a general relativistic spherically symmetric ... -
On the eccentricity behaviour of radiating slowly rotating bodies in general relativity
(SABER ULA, 2006-01-26)On the eccentricity behaviour of radiating slowly rotating bodies (Núñez, Luis; Hernández, Hector; Herrera, Luis; Percoco, Umberto) Abstract We study different models of radiating slowly rotating bodies up to the ... -
Radiating, slowly rotating bodies in general relativity
(SABER ULA, 2006-01-26)Radiating, slowly rotating bodies in general relativity (Melfo, Alejandra; Núñez, Luis; Patiño, Alberto; Herrera, Luis) Abstract We propose a method to obtain axisymmetric, dynamic solutions to the Einstein equations ... -
Ricci collineations for non-degenerate, diagonal and spherically symmetric ricci tensors
(SABER ULA, 2006-01-26)Ricci collineations for non-degenerate, diagonal and spherically symmetric ricci tensors (Núñez, Luis; Percoco, Umberto; Contreras, Gerardo) Abstract The expression of the vector field generator of a Ricci Collineation ... -
Ricci collineations for type B warped space-times
(SABER ULA, 2006-01-26)Ricci collineations for type B warped space-times (Núñez, Luis; Percoco, Umberto; Carot, J.) Abstract We present the general structure of proper Ricci Collineations (RC) for type B warped space-times. Within this ... -
Self-gravitating domain walls and the thin-wall limit
(SABER ULA, 2005-05-25)Self-gravitating domain walls and the thin-wall limit Guerrero, Rommel, Melfo, Alejandra; Pantoja, Nelson Abstract We analyse the distributional thin wall limit of self gravitating scalar ... -
Static anisotropic solutions to Einstein equations with a nonlocal equation of state
(SABER ULA, 2005-04-18)Static anisotropic solutions to Einstein equations with a nonlocal equation of state (Núñez, Luis; Hernández, Hector) Abstract We present a general method to obtain static anisotropic spherically symmetric solutions, ... -
Symmetries of distributional domain wall geometries
(SABER ULA, 2005-05-25)Symmetries of distributional domain wall geometries Pantoja, Nelson; Sanoja, Alberto Abstract Generalizing the Lie derivative of smooth tensor fields to distribution-valued tensors, we ... -
The 3-dimensional einstein-klein-gordon system in characteristic numerical relativity.
(SABER ULA, 2005-09-18)The 3-dimensional einstein-klein-gordon system in characteristic numerical relativity. (Barreto Acevedo, Willians; Da Silva, A.; Gómez, R.; Lehner, R.; Rosales, L.; Winicour, J..) Abstract We incorporate a massless ... -
Thick domain wall spacetimes with and without reflection symmetry
(SABER ULA, 2005-05-25)Thick domain wall spacetimes with and without reflection symmetry Melfo, Alejandra; Pantoja, Nelson; Skirzewski, Aureliano Abstract We show that the spacetimes of domain wall solutions to ...