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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 ...
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 ...
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, ...