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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 ...
Self-similar static solutions admitting a 2-space of constant curvature
(SABER ULA, 2008-07-02)
Self-similar static solutions admitting a 2-space of constant curvature
(Carot, Jaume; Sintes, A. M.)
Abstract
A recent result by Haggag and Hajj-Boutros is reviewed within the framework of self-similar spacetimes, ...
New BPS domain wall solutions.
(SABER ULA, 2007-03-28)
New BPS domain wall solutions.
(Pantoja, Nelson y Ramírez, Alba)
Abstract
Smooth solutions of gravity-scalar field models which represents BPS domain wall spacetimes with a well defined thin wall limit are obtained ...
On the collineations of distribution-valued Ricci tensor fields of domain wall spacetimes.
(SABER ULA, 2007-03-27)
On the collineations of distribution-valued Ricci tensor fields of domain wall spacetimes.
(Pantoja, Nelson y Sanoja, Alberto)
Abstract
Generalizing the Lie derivative to distribution-valued tensors, we examine the ...
Localizing gravity on exotic thick 3-branes
(SABER ULA, 2007-03-19)
Localizing gravity on exotic thick 3-branes
Castillo-Felisola, Oscar; Melfo, Alejandra; Pantoja, Nelson; Ramírez, Alba
Abstract
We consider localization of gravity on thick branes with a ...
Fermion localization on thick branes
(SABER ULA, 2007-03-19)
Fermion localization on thick branes.
(Melfo, Alejandra; Pantoja, Nelson and Tempo, José David)
Abstract
We consider chiral fermion confinement in scalar thick branes, which are known to localize gravity, coupled ...
Close to the edge: hierarchy in a double braneworld
(SABER ULA, 2007-03-19)
Close to the edge: hierarchy in a double braneworld.
(Guerrero, Rommel; Melfo, Alejandra; Pantoja, Nelson and Rodriguez, R. Omar)
Abstract
We show that the hierarchy between the Planck and the weak scales can follow ...