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On the geometry of warped spacetimes
(SABER ULA, 2008-07-02)
On the geometry of warped spacetimes
(Carot, Jaume; da Costa, J.)
Abstract
An invariant characterization of warped spacetimes is given and a classification scheme for them is proposed. Some results on the curvature ...
Energy-momentum types of warped spacetimes
(SABER ULA, 2008-07-02)
Energy-momentum types of warped spacetimes
(Carot, Jaume; Haddow, Barry M.
Abstract
The possible energy–momentum types of warped product pacetime are investigated using the classification given by Carot and da Costa.
Some developments on axial symmetry
(SABER ULA, 2008-07-02)
Some developments on axial symmetry
(Carot, Jaume)
Abstract
The definition of axial symmetry in general relativity is reviewed, and some results concerning the geometry in a neighbourhood of the axis are derived. ...
Conformal symmetry inheritance in null fluid spacetimes
(SABER ULA, 2008-07-02)
Conformal symmetry inheritance in null fluid spacetimes
(Carot, Jaume; Keane, A. J.; Coley, A. A.; Hall, J. S.; Tupper, Brian O. J.)
Abstract
We define inheriting conformal Killing vectors for null fluid spacetimes ...
Conformal symmetries in null Einstein-Maxwell fields
(SABER ULA, 2008-07-02)
Conformal symmetries in null Einstein-Maxwell fields
(Carot, Jaume; Hall, J. S.)
Abstract
It is shown that if a null Einstein-Maxwell spacetime admifs a proper conformal vector field it must either be a (generalized ...
Conformally reducible 2 + 2 spacetimes
(SABER ULA, 2008-07-02)
Conformally reducible 2 + 2 spacetimes
(Carot, Jaume; Tupper, Brian O. J.)
Abstract
Spacetimes which are conformal to 2 + 2 reducible spacetimes are considered. We classify them according to their conformal algebra, ...
Homothetic perfect fluid spacetimes
(SABER ULA, 2008-07-02)
Homothetic perfect fluid spacetimes
(Carot, Jaume; Sintes, A. M.)
Abstract
A brief summary of results on homotheties in general relativity is given,
including general information about spacetimes admitting an ...
Matter collineations: The inverse "symmetry inheritance" problem.
(SABER ULA, 2008-07-02)
Generalised soliton solutions of the Weyl class
(SABER ULA, 2008-07-02)
Generalised soliton solutions of the Weyl class
(Verdaguer, Enric ; Carot, Jaume)
Abstract
The whole family of generalised soliton solutions of the Weyl class for Einstein's equations in vacuum is considered. A ...
On the definition of cylindrical symmetry
(SABER ULA, 2008-07-02)
On the definition of cylindrical symmetry
(Carot, Jaume; Senovilla, José M. M.; Vera, Raül)
Abstract
The standard definition of cylindrical symmetry in general relativity is reviewed. Taking the view that axial ...