English

Gravitational Collapse: Expanding and Collapsing Regions

General Relativity and Quantum Cosmology 2011-03-28 v1

Abstract

We investigate the expanding and collapsing regions by taking two well-known spherically symmetric spacetimes. For this purpose, the general formalism is developed by using Israel junction conditions for arbitrary spacetimes. This has been used to obtain the surface energy density and the tangential pressure. The minimal pressure provides the gateway to explore the expanding and collapsing regions. We take Minkowski and Kantowski-Sachs spacetimes and use the general formulation to investigate the expanding and collapsing regions of the shell.

Keywords

Cite

@article{arxiv.1008.2805,
  title  = {Gravitational Collapse: Expanding and Collapsing Regions},
  author = {M. Sharif and G. Abbas},
  journal= {arXiv preprint arXiv:1008.2805},
  year   = {2011}
}

Comments

12 pages, 4 figures, accepted for publication in Gen. Relativ. Grav

R2 v1 2026-06-21T16:01:40.836Z