Articulos, Pre-prints (Centro de Física Fundamental (CFF)): Envíos recientes
Mostrando ítems 41-60 de 102
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The gravitational and electrostatic fields far from an isolated Einstein-maxwell source.
(SABER ULA, 2006-08-03) -
Reporte de búsqueda de bibliotecas de funciones gráficas, de alto rendimiento y de dominio público en internet.
(SABER ULA, 2006-01-26)Reporte de búsqueda de bibliotecas de funciones gráficas, de alto rendimiento y de dominio público en internet. (Núñez, Luis; Gutiérrez, Javier; Rangel, Violeta; Medina, Rubén.) Resumen En este reporte se hace una ... -
TIC e Impacto social: el caso de Mérida
(SABER ULA, 2006-01-26)TIC e Impacto social: el caso de Mérida (Núñez, Luis; Silva, José Gregorio) Resumen Presentamos aquí, como un caso de estudio, la ciudad de Mérida. De alguna manera en esta pequeña ciudad de Venezuela se ha generado ... -
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 ... -
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 ... -
La Reconquista de la Biblioteca Digital
(SABER ULA, 2006-01-26)La Reconquista de la Biblioteca Digital (Núñez, Luis) Resumen En el presente ensayo se trata de ilustrar como ha sido el proceso de apropiación de la información científica por parte de las compañías editoras desde ... -
Reporte de la búsqueda de bibliotecas numéricas de algebra lineal, de alto rendimiento, de dominio público en internet.
(SABER ULA, 2006-01-26)Reporte de la búsqueda de bibliotecas numéricas de algebra lineal, de alto rendimiento, de dominio público en internet. (Núñez, Luis; Catalini, Golfredo; Gutiérrez, Javier.) Resumen Hacemos una descripción de ocho de ... -
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 ... -
Nonlocal equation of state in anisotropic static fluid spheres in general relativity
(SABER ULA, 2006-01-26)Nonlocal equation of state in anisotropic static fluid spheres in general relativity (Núñez, Luis; Hernández, Hector) Abstract We show that it is possible to obtain credible static anisotropic spherically symmetric ... -
Variable Eddington Factor and Radiating Slowly Rotating Bodies in General Relativity
(SABER ULA, 2006-01-26)Variable Eddington Factor and Radiating Slowly Rotating Bodies in General Relativity (Núñez, Luis; Aguirre, Felix; Soldovieri, T.) Abstract We present an extension to a previous work to study the collapse of a ... -
Hydrodynamics in class b warped spacetimes.
(SABER ULA, 2006-01-26)Hydrodynamics in class b warped spacetimes. (Núñez, Luis; Carot, Jeumes.) Abstract We discuss certain general features of type B warped spacetimes which have important consequences on the material content they may ... -
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 ... -
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 ... -
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 ... -
Gauge theories at finite temperature and the background field method
(SABER ULA, 2006-01-19)Gauge theories at finite temperature and the background field method Antikainen, J.; Chaichian, M.; Pantoja, N.R.; Salazar, J.J. Abstract The background field method has been employed to ... -
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 ... -
Soluciones conformemente planas con ecuación de estado no local.
(SABER ULA, 2005-07-04)Soluciones conformemente planas con ecuación de estado no local. (Núñez, Luis; Muñoz S., A.G. .) Abstract A non-local equation of state describes the components of the energy-momentum tensor not only as a function of ... -
Spin waves at the ferromagnetic-antiferromagnetic interface
(SABER ULA, 2005-06-06)Spin waves at the ferromagnetic-antiferromagnetic interface Pestana, E., Mata, G. J., Pantoja, N. Abstract We investigate the magnon modes in the neighbourhood of the interface between a ... -
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 ... -
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 ...