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Second order perturbations of rotating bodies in equilibrium; the exterior vacuum problem
Malcolm A. H. MacCallum, Marc Mars, Raul Vera
We study the exterior vacuum problem for first and second order stationary and axially symmetric perturbations of static bodies. The boundary conditions and their compatibility for…
On global models for finite rotating objects in equilibrium in cosmological backgrounds
Brien C. Nolan, Raül Vera
The studies in general relativity of rotating finite objects in equilibrium have usually focused on the case when they are truly isolated, this is, the models to describe finite ob…
On the construction of global models describing isolated rotating charged bodies; uniqueness of the exterior gravitational field
Raül Vera
A relatively recent study by Mars and Senovilla provided us with a uniqueness result for the exterior vacuum gravitational field of global models describing finite isolated rotatin…
Properties of Bel currents
Ruth Lazkoz, Jose M M Senovilla, Raul Vera
The Bel tensor is divergence-free in some important cases leading to the existence of conserved currents associated to Killing vectors analogously to those of the energy-momentum t…