Averaging spherically symmetric spacetimes in general relativity

2006 ◽  
Vol 74 (8) ◽  
Author(s):  
A. A. Coley ◽  
N. Pelavas
Keyword(s):  
General Relativity ◽  
Spherically Symmetric ◽  
Symmetric Spacetimes ◽  
Spherically Symmetric Spacetimes

Understanding singularities — Classical and quantum

2016 ◽  
Vol 31 (02n03) ◽  
pp. 1641007 ◽  
Author(s):  
Deborah A. Konkowski ◽  
Thomas M. Helliwell
Keyword(s):  
General Relativity ◽  
Scalar Field ◽  
Spherically Symmetric ◽  
Singularity Structure ◽  
Symmetric Spacetimes ◽  
Spacetime Singularity ◽  
Spherically Symmetric Spacetimes ◽  
Quantum Singularities ◽  
Static Spherically Symmetric Spacetimes

The definitions of classical and quantum singularities are reviewed. Examples are given of both as well as their utility in general relativity. In particular, the classical and quantum singularity structure of certain interesting conformally static spherically symmetric spacetimes modeling scalar field collapse are reviewed. The spacetimes include the Roberts spacetime, the Husain-Martinez-Nuñez spacetime and the Fonarev spacetime. The importance of understanding spacetime singularity structure is discussed.

Classification of Static Spherically Symmetric Spacetimes by Noether Symmetries

2013 ◽  
Vol 52 (10) ◽  
pp. 3534-3542 ◽  
Author(s):  
Ashfaque H. Bokhari ◽  
A. G. Johnpillai ◽  
A. H. Kara ◽  
F. M. Mahomed ◽  
F. D. Zaman
Keyword(s):  
Spherically Symmetric ◽  
Noether Symmetries ◽  
Symmetric Spacetimes ◽  
Spherically Symmetric Spacetimes ◽  
Static Spherically Symmetric Spacetimes

scholarly journals REISSNER–NORDSTRÖM SOLUTIONS AND ENERGY IN TELEPARALLEL THEORY

2006 ◽  
Vol 21 (29) ◽  
pp. 2241-2250 ◽  
Author(s):  
GAMAL G. L. NASHED
Keyword(s):  
Spherically Symmetric ◽  
Tetrad Field ◽  
Symmetric Spacetimes ◽  
Time Space ◽  
Teleparallel Theory ◽  
Theory Of Gravitation ◽  
Spherically Symmetric Spacetimes ◽  
Charged Source ◽  
Superpotential Method ◽  
Tetrad Theory

We give three different spherically symmetric spacetimes for the coupled gravitational and electromagnetic fields with charged source in the tetrad theory of gravitation. One of these contains an arbitrary function and generates the others. These spacetimes give the Reissner–Nordström metric black hole. We then calculated the energy associated with these spacetimes using the superpotential method. We find that unless the time-space components of the tetrad field go to zero faster than [Formula: see text] at infinity, one gets different results for the energy.

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