Chronometric invariants : on deformations and the curvature of accompanying space

This book was written in 1944 by Abraham Zelmanov, a prominent scientist working in General relativity and cosmology. Herein he constructs the theory of physical observable quantities in General Relativity (Chronometric Invariants), and applies it to determine all possible cosmological models within the framework of Einstein theory scenarios of evolution which could be theoretically conceivable for a truly inhomogeneous and anisotropic Universe