Listar Articulos, Pre-prints (Centro de Física Fundamental (CFF)) por autor "Percoco, Umberto"
Mostrando ítems 1-5 de 5
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Comment on Ricci Collineations of static spherically symmetric spacetimes
Núñez, Luis; Percoco, Umberto; Contreras, Gerardo; Bertolotti, Ricardo; Carot, Jaume (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 ... -
Nonlocal equation of state in general relativistic radiating spheres
Núñez, Luis; Percoco, Umberto; Hernández G., Héctor (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
Núñez, Luis; Herrera Cometta, Luis; Percoco, Umberto; Hernández G., Héctor (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
Núñez, Luis; Percoco, Umberto; Contreras, Gerardo (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
Núñez, Luis; Percoco, Umberto; Carot, Jaume (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 ...