Mass formulae for spherically symmetric stellar configurations in five dimensional space-time

An expression is derived where the mass is connected to an integral over the pressure of gravitating matter in the frame work of five dimensional(5D) space-time.Comment: 5 pages Latex, No figur

Anizotropna raspodjela tvari u Rosenovoj višedimenzijskoj teoriji gravitacije

We have obtained static and spherically-symmetric solutions of the gravitational field equations for isotropic and anisotropic distribution of matter in the context of higher-dimensional bimetric theory of gravitation under the assumption that the physical metric admits a one-parameter group of conformal motion. The solutions agree with Einstein\u27s general relativity for physical systems such as the solar system. This work is an extension of the previous work of Shri Ram and Pandey (Astrophys. Space Sci. 127 (1986) 9) for four-dimensional space time.Dobili smo statička sferno simetrična rješenja jednadžbi gravitacijskog polja za izotropnu i neizotropnu raspodjelu tvari, na osnovi višedimenzijske bimetrijske teorije gravitacije, uz pretpostavku da fizička metrika dopušta jedno-parametarsku grupu konformnog gibanja. Rješenja se slažu s Einsteinovom općom relativnošću za sustave kao što je Sunčev sustav. Ovaj je rad proširenje ranijeg rada Shri Rama i Pandeya za četiridimenzijski prostor-vrijeme