caa a22 4500 445386878 CHVBK 20180317143034.0 cr unu---uuuuu 170323e20110401xx s 000 0 eng 10.1007/s10714-010-0952-1 doi (NATIONALLICENCE)springer-10.1007/s10714-010-0952-1 Gravitational collapse: expanding and collapsing regions [Elektronische Daten] [M. Sharif, G. Abbas] 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. Springer Science+Business Media, LLC, 2010 Junction conditions nationallicence Expanding and collapsing regions nationallicence Sharif M. Department of Mathematics, University of the Punjab, Quaid-e-Azam Campus, 54590, Lahore, Pakistan aut Abbas G. Department of Mathematics, University of the Punjab, Quaid-e-Azam Campus, 54590, Lahore, Pakistan aut General Relativity and Gravitation Springer US; http://www.springer-ny.com 43/4(2011-04-01), 1179-1188 0001-7701 43:4<1179 2011 43 10714 https://doi.org/10.1007/s10714-010-0952-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10714-010-0952-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sharif M. Department of Mathematics, University of the Punjab, Quaid-e-Azam Campus, 54590, Lahore, Pakistan aut NATIONALLICENCE 700 1- Abbas G. Department of Mathematics, University of the Punjab, Quaid-e-Azam Campus, 54590, Lahore, Pakistan aut NATIONALLICENCE 773 0- General Relativity and Gravitation Springer US; http://www.springer-ny.com 43/4(2011-04-01), 1179-1188 0001-7701 43:4<1179 2011 43 10714 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer