Kijowski, J.Magli, G.Malafarina, D.2015-12-232015-12-232005Kijowski J., Magli G., Malafarina D.; 2005; The general solution for relativistic spherical shells; http://arxiv.org/find/all/1/all:+malafarina/0/1/0/all/0/1http://nur.nu.edu.kz/handle/123456789/968The general exact solution of the Einstein-matter field equations describing spherically symmetric shells satisfying an equation of state in closed form is discussed under general assumptions of physical reasonableness. The solutions split into two classes: a class of “astrophysically interesting” solutions describing “ordinary” matter with positive density and pressure, and a class of “phantom-like” solutions with positive density but negative active gravitational mass, which can also be of interest in several “very strong fields” regimes. Known results on linear-barotropic equations of state are recovered as particular cases.enResearch Subject Categories::NATURAL SCIENCES::Physicsastrophysicsgravitational collapseArticle