18.1k citations
- University of LisbonPT1.3k papers
- Universidade Técnica de LisboaPT388 papers
- Centre National de la Recherche ScientifiqueFR326 papers
- Instituto de Plasmas e Fusão NuclearPT209 papers
- European Organization for Nuclear ResearchCH202 papers
- Centro de Física Teórica de Partículas201 papers
- Instituto Politécnico de LisboaPT190 papers
- Instituto de TelecomunicaçõesPT175 papers
- Universitat de ValènciaES175 papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR143 papers
- Centro de Astrofísica e GravitaçãoPT133 papers
- LIP - Laboratory of Instrumentation and Experimental Particle PhysicsPT133 papers
7 papers · 2 filters
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…
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.
Locally Anisotropic Structures and Nonlinear Connections in Einstein and Gauge Gravity
Sergiu I. Vacaru, Heinz Dehnen
We analyze local anisotropies induced by anholonomic frames and associated nonlinear connections in general relativity and extensions to affine Poincare and de Sitter gauge gravity…
Nonlinear Connections and Nearly Autoparallel Maps in General Relativity
Heinz Dehnen, Sergiu I. Vacaru
We apply the method of moving anholonomic frames, with associated nonlinear connections, in (pseudo) Riemannian spaces and examine the conditions when various types of locally anis…
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…