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Hidden symmetries and supergravity solutions
(American Institute Of Physics, 2012-04)
The role of Killing and Killing-Yano tensors for studying the geodesic motion of the particle and the superparticle in a curved background is reviewed. Additionally, the Papadopoulos list [G. Papadopoulos, Class. Quantum ...
Regular and chaotic interactions of two BPS dyons at low energy
(American Physical Soc, 2005-11-01)
We identify and analyze quasiperiodic and chaotic motion patterns in the time evolution of a classical, non-Abelian Bogomol'nyi-Prasad-Sommerfield (BPS) dyon pair at low energies. This system is amenable to the geodesic ...
Regular and chaotic interactions of two BPS dyons at low energy
(2005-11-15)
We identify and analyze quasiperiodic and chaotic motion patterns in the time evolution of a classical, non-Abelian Bogomol'nyi-Prasad-Sommerfield (BPS) dyon pair at low energies. This system is amenable to the geodesic ...
Minimal Lagrangian surfaces in the tangent bundle of a Riemannian surface
(ELSEVIER SCIENCE BV, 2011)
Given an oriented Riemannian surface (Sigma, g), its tangent bundle T Sigma enjoys a natural pseudo-Kahler structure, that is the combination of a complex structure 2, a pseudo-metric G with neutral signature and a symplectic ...
Curvas de rotação de galáxias LSB em aproximação quase-newtoniana da Teoria da Relatividade Geral
(2018-05)
Desde as observações de Bosma e Rubin na década de 1970, as curvas de rotação das galaxias compõem parte central de um dos principais problemas em discussão na astrofísica contemporânea. A indicação da aparente falta de ...
On symmetries of exact solutions of Einstein field equations
(Universidade Federal de PernambucoUFPEBrasilPrograma de Pos Graduacao em Fisica, 2019)
Extended Hamilton-Jacobi theory, contact manifolds, and integrability by quadratures
(American Institute of Physics, 2020-01)
A Hamilton-Jacobi theory for general dynamical systems, defined on fibered phase spaces, has been recently developed. In this paper, we shall apply such a theory to contact Hamiltonian systems, as those appearing in ...
Exact cosmological black hole solutions in scalar tensor vector gravity
(IOP Publishing, 2019-12)
We find an exact solution of scalar-tensor-vector gravity field equations that represents a black hole embedded in an expanding universe. This is the first solution of such a kind found in the theory. We analyze the ...