Buscar
Mostrando ítems 21-30 de 319
The gravity of covid-19: an assessment of international trade policies
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Economia - PPGEc-SoCâmpus Sorocaba, 2022-07-15)
This study assesses the effects of the containment policies and international trade policy notifications related to the novel Coronavirus pandemic on the trade flows of 33 countries from January 2020 to June 2021. COVID-19 ...
Singularidades quânticasQuantum singularities
([s.n.], 2011)
Gravitational interpretation of the Hitchin equations
(Elsevier Science BvAmsterdamHolanda, 2007)
Quantum gravity : A comprehensible first approach
(UniandesFísicaFacultad de CienciasDepartamento de Física, 2003)
The aim of the present work is to reconstruct, in a comprehensive and self-contained way, the path that scientists followed a century ago in order to build a self-consistent quantum theory of gravity, and show the inevitable ...
Asymptotic regimes of ridge and rift formation in a thin viscous sheet model
(American Institute of Physics, 2008-04)
We numerically and theoretically investigate the evolution of the ridges and rifts produced by the convergent and divergent motions of two substrates over which an initially uniform layer of a Newtonian liquid rests. We ...
Pp waves of conformal gravity with self-interacting sourceANNALS OF PHYSICSANN PHYS-NEW YORK
(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2017)
Self-dual lorentzian wormholes in n-dimensional einstein gravityPHYSICAL REVIEW D, PARTICLES AND FIELDSPHYS REV D
(AMERICAN PHYSICAL SOCIETY, 2017)
Pp waves of conformal gravity with self-interacting sourceANNALS OF PHYSICSANN PHYS-NEW YORK
(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2017)
Magnetic mass in 4D AdS gravity
(2016)
We provide a fully covariant expression for the diffeomorphic charge in four-dimensional anti-de Sitter gravity, when the Gauss-Bonnet and Pontryagin terms are added to the action. The couplings of these topological ...