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- Universidade de BrasíliaBR10 papers
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6 papers · 1 filter
Change in Hamiltonian General Relativity with Spinors
J. Brian Pitts
In Hamiltonian GR, change has seemed to be missing, defined only asymptotically, or otherwise obscured at best. By construing change as essential time dependence, can one find chan…
Generalized Tachyonic Teleparallel cosmology
Sebastian Bahamonde, Mihai Marciu, Jackson Levi Said
In this paper we propose a new dark energy model in the teleparallel alternative of general relativity, by considering a generalized non--minimal coupling of a tachyonic scalar fie…
New Exact Spherically Symmetric Solutions in gravity by Noether's symmetry approach
Sebastian Bahamonde, Kazuharu Bamba, Ugur Camci
The exact solutions of spherically symmetric space-times are explored by using Noether symmetries in gravity with the scalar curvature, a scalar field and th…
Noether symmetries and boundary terms in extended Teleparallel gravity cosmology
Sebastian Bahamonde, Ugur Camci, Salvatore Capozziello
We discuss an extended Teleparallel gravity models comprising functions of scalar invariants constructed by torsion, torsion Gauss-Bonnet and boundary terms. We adopt the Noether S…
Linear potentials in galaxy halos by Asymmetric Wormholes
Sebastian Bahamonde, David Benisty, Eduardo I. Guendelman
A spherically symmetric space-time solution for a diffusive two measures theory is studied. An asymmetric wormhole geometry is obtained where the metric coefficients have a linear…
Static spherically symmetric wormholes in generalized gravity
M. Zubair, Farzana Kousar, Sebastian Bahamonde
In this paper, we examine static spherically symmetric wormhole solutions in generalized gravity. To do this, we consider three different kinds of fluids: anisotropic, bar…