51 citations · 1k across the 78 of their papers we have counts for
79 papers
Thin-disk models in an Integrable Weyl-Dirac theory
Ronaldo S. S. Vieira, Patricio S. Letelier
We construct a class of static, axially symmetric solutions representing razor-thin disks of matter in an Integrable Weyl-Dirac theory proposed in Found. Phys. 29, 1303 (1999). The…
Modeling the quantum evolution of the universe through classical matter
J. P. M. Pitelli, P. S. Letelier
It is well known that the canonical quantization of the Friedmann-Lemaître-Robertson-Walker (FLRW) filled with a perfect fluid leads to nonsingular universes which, for later times…
A Manifestly Noncovariant Theory of Gravitation
Patricio. S. Letelier
We study a noncovariant theory of gravitation based on the Lagrangian density , where is a constant. In particular, we study solutions that for reduces to…
Motion around a Monopole + Ring system: I. Stability of Equatorial Circular Orbits vs Regularity of Three-dimensional Motion
Javier Ramos-Caro, Juan F. Pedraza, Patricio S. Letelier
We study the motion of test particles around a center of attraction represented by a monopole (with and without spheroidal deformation) surrounded by a ring, given as a superpositi…
Solutions to the restricted three-body problem with variable mass
Tiago Amancio da Silva, P. S. Letelier
We look for particular solutions to the restricted three-body problem where the bodies are allowed to either lose or gain mass to or from a static atmosphere. In the case that all…
Galaxy Rotation Curves from General Relativity with Infrared Renormalization Group Effects
Davi C. Rodrigues, Patricio S. Letelier, Ilya L. Shapiro
We review our contribution to infrared Renormalization Group (RG) effects to General Relativity in the context of galaxies. Considering the effective action approach to Quantum Fie…