Ebook: A Random walk in relativity and cosmology: essays in honour of P.C. Vaidya and A.K. Raychaudhuri /

This book contains papers discussing the study of gravitational effects around local objects and the investigation of the global structure of spacetime. Contents include: a generation of a mass-gap by restoration of broken symmetry; scalar particle energy levels bound by a schwarzschild black hole; curves will hull normals in Minowski space-time; recent proofs of the positivity of gravitational energy; and general relativistic aspects of neutron star models.