20 citations · 52 across the 11 of their papers we have counts for
11 papers
Spatially flat universes with isotropic tidal forces
Fabio Scalco Dias, Leandro Gustavo Gomes, Luis Fernando Mello
We investigate the dynamics of the spatially flat universes submitted to isotropic tidal forces and adiabatic expansion under Einstein's equations. Surprisingly, the tendency to a…
Surfaces Around Closed Principal Curvature Lines, an Inverse Problem
R. Garcia, L. F. Mello, J. Sotomayor
Given a non circular spacial closed curve whose total torsion is an integer multiple of , we construct a germ of a smooth surface that contains it as a hyperbolic principal cyc…
Hopf Bifurcations in a Watt Governor With a Spring
Jorge Sotomayor, Luis Fernando Mello, Denis de Carvalho Braga
This paper pursues the study carried out by the authors in "Stability and Hopf bifurcation in a hexagonal governor system", focusing on the codimension one Hopf bifurcations in the…
Lyapunov Coefficients for Degenerate Hopf Bifurcations
Jorge Sotomayor, Luis Fernando Mello, Denis de Carvalho Braga
In this paper are studied the codimensions one, two, three and four Hopf bifurcations and the pertinent Lyapunov stability coefficients. Algebraic expressions obtained with compute…
Hopf Bifurcation in a Model for Biological Control
Jorge Sotomayor, Luis Fernando Mello, Danilo Braun Santos +1
In this paper we study the Lyapunov stability and Hopf bifurcation in a biological system which models the biological control of parasites of orange plantations.
The Aharonov-Bohm effect: Mathematical Aspects of the Quantum Flow
Luis Fernando Mello, Yuri Cândido Ribeiro
This paper addresses the scattering of a beam of charged particles by an infinitely long magnetic string in the context of the hydrodynamical approach to quantum mechanics. The sca…