This volume summarizes the many modified theories of gravity and shows how to select physically viable models using symmetry principles.

In Noether's original presentation of her celebrated theorem of 1918, allowances were made for the dependence of the coefficient functions of the differential o

Over the course of the last century it has become clear that both elementary particle physics and relativity theories are based on the notion of symmetries. The

Modern comprehensive introduction and overview of the physics of White Dwarfs, Neutron Stars and Black Holes, including all relevant observations. Contains a ba

This monograph provides an introduction to deformations of Poincaré symmetries focusing on models with a Lie group momentum space and associated non-commutativ