Sound speeds, cracking and stability of self-gravitating anisotropic compact objects. Abstract Using the the concept of cracking we explore the influence of density fluctuations and local anisotropy have on the stability ...

Cracking of self-gravitating compact objects with local and non local equations of state. (Abreu, Henso; Hernández, Hector y Núñez, Luis) Abstract We discuss the effect that small fluctuations of density and local ...

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 (Núñez, Luis; Hernández, Hector; Herrera, Luis; Percoco, Umberto) Abstract We study different models of radiating slowly rotating bodies up to the ...

Radiating spheres in general relativity with a mixed transport energy flow (Barreto Acevedo, Willians; Núñez, Luis) Abstract A semi-numerical method by Herrera et al. (1980) is extended to handle the evolution of ...

Radiation flow and viscous stresses in anisotropic gravitational collapse (Martínez, Justino; Pavón, Diego; Núñez, Luis) Abstract The Herrera-Jimenez-Ruggeri method is employed to analyse the evolution of anisotropic ...

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 (Núñez, Luis; Contreras, Gerardo; Percoco, Umberto; Bertolotti, Ricardo; Carot, J.) Abstract We present a counter example to a theorem given ...

The evolution of discontinuities in radiating spheres in the diffusion approximation (Barreto Acevedo, Willians; Herrera, L.; Núñez, Luis) Abstract The evolution of discontinuities in a general relativistic sphere ...

Propagation of a shock wave in a radiating spherically symmetric distribution of matter (Herrera, L.; Núñez, Luis) Abstract A method used to study the evolution of radiating spheres reported by L. Herrera, J. Jimenez, ...