20 citations · 21 across the 4 of their papers we have counts for
5 papers · 1 filter
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…
Stability and Hopf Bifurcation in an Hexagonal Governor System With a Spring
Jorge Sotomayor, Luis Fernando Mello, Denis de Carvalho Braga
In this paper we study the Lyapunov stability and the Hopf bifurcation in a system coupling an hexagonal centrifugal governor with a steam engine. Here are given sufficient conditi…
Principal Mean Curvature Foliations on Surfaces immersed in
R. Garcia, L. F. Mello, J. Sotomayor
Here are studied qualitative properties of the families of curves --foliations-- on a surface immersed in , along which it bends extremally in the direction of the m…