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Cherenkov radiation in a gravitational wave background
Alexander B. Balakin, Richard Kerner, Jose' P. S. Lemos
A covariant criterion for the Cherenkov radiation emission in the field of a non-linear gravitational wave is considered in the framework of exact integrable models of particle dyn…
Supersymmetry of the extreme rotating toroidal black hole
Jose' P. S. Lemos
We study the supersymmetry of the charged rotating toroidal black hole solutions found by Lemos and Zanchin, and show that the only configurations that are supersymmetric are: (i)…
Black holes with toroidal, cylindrical and planar horizons in anti-de Sitter spacetimes in general relativity and their properties
Jose' P. S. Lemos
We review the toroidal, cylindrical and planar black hole solutions in anti-de Sitter spacetimes and present their properties.
Gravitational instabilities in helicity-1 waves propagating through matter in equilibrium
Luis Bento, Jose P. S. Lemos
It is shown that the interaction of helicity-1 waves of gravity and matter in a thin slab configuration produces new types of instabilities. Indeed, a transverse spin-2 helicity-1…
No-go theorem for false vacuum black holes
Dmitri V. Gal'tsov, Jose' P. S. Lemos
We study the possibility of non-singular black hole solutions in the theory of general relativity coupled to a non-linear scalar field with a positive potential possessing two mini…