Mathematical Problems in Relativity, Gravitation, and Cosmology

This book contains articles related to problems of modern physics and mathematics. This book includes an editorial introduction and 8 chapters. All articles have been reviewed. This book may be considered as the continuation of books in a series published by the authors in the past years. It can be of interest to professors, researchers, engineers working in theoretical physics, postgraduate students, and the public in general interested in theoretical physics and astrophysics.