Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
1999-12-07
Proc. of the 2nd ICRA Network Workshop "The Chaotic Universe", Rome-Pescara, February 1999, eds. V. Gurzadyan and R. Ruffini (
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
15 pages, LaTeX, extended version (including a review on the subject) of the paper "Approximate Symmetries, Inhomogeneous Spac
Scientific paper
The problem of finding an appropriate geometrical/physical index for measuring a degree of inhomogeneity for a given space-time manifold is posed. Interrelations with the problem of understanding the gravitational/informational entropy are pointed out. An approach based on the notion of approximate symmetry is proposed. A number of related results on definitions of approximate symmetries known from literature are briefly reviewed with emphasis on their geometrical/physical content. A definition of a Killing-like symmetry is given and a classification theorem for all possible averaged space-times acquiring Killing-like symmetries upon averaging out a space-time with a homothetic Killing symmetry is proved.
No associations
LandOfFree
Approximate Symmetries in General Relativity does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Approximate Symmetries in General Relativity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Approximate Symmetries in General Relativity will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-282245