Conservation laws nonlocal, anomalies and exact S-matrices of two-dimensional mo...

Perturbations of Gravitational Systems: the Vaidya Metric, Mini Black Holes and ...

Inflationary Cosmology in RS-I Brane Models.

Gravitational perturbations and wane propagation in black holes with magnetic fi...

Compact Stars and Black Holes - A Comparative Study of Physical Properties and Quasi-Normal...

Black holes and thermodynamics

Gravitational Shortcuts in Cosmology of Branas

Propagation of fields in spherical black holes

Observational Constraints in Interacting Dark Energy Models

Quasinormal stability