Results 101 to 110 of about 65,659 (224)

Hopf bifurcations in competitive three-dimensional Lotka-Volterra Systems

open access: yes, 1990
Zeeman, M.L.. (1990). Hopf bifurcations in competitive three-dimensional Lotka-Volterra Systems.
Zeeman, M.L.
core  

A note on the calculation of paths of Hopf bifurcations

open access: yes, 1989
This paper is concerned with the analysis of a two parameter nonlinear problem whose linearisation has a double zero eigenvalue with only one eigenvector.
Jepson, A.D., Cliffe, K.A., Spence, A.
core   +1 more source

Backward Hopf bifurcation in a mathematical model for oncolytic virotherapy with the infection delay and innate immune effects

open access: yesJournal of Biological Dynamics, 2019
In this paper, we consider a system of delay differential equations that models the oncolytic virotherapy on solid tumours with the delay of viral infection in the presence of the innate immune response. We conduct qualitative and numerical analysis, and
Yuxiao Guo, Ben Niu, Jianjun Paul Tian
doaj   +1 more source

Hopf Bifurcations in Resonance 2:1

open access: yes, 2007
In this paper Hopf bifurcations for equations of control theory are studied in 2 : 1 resonance case. The harmonic linearization approach and topological methods allow to give the sharp analysis of the problem for the case of quadratic principal ...
Dmitrii I. Rachinskii   +2 more
core  

Zero-Hopf bifurcations in 3-dimensional differential systems with no equilibria

open access: yes, 2021
We use averaging theory for studying the Hopf and zero--Hopf bifurcations in some chaotic differential systems. These differential systems have a chaotic attractor and no equilibria.
Cândido, Murilo R., Llibre, Jaume
core  

On degenerate planar Hopf bifurcations

open access: yesJournal of Physics A: Mathematical and Theoretical, 2011
Our concern is the study of degenerate Hopf bifurcation of smooth planar dynamical systems near isolated singular points. To do so, we propose to split up the definition of degeneracy into two types. Degeneracy of first kind shall means that no limit cycle surrounding the steady state can emerge after or before the critical point, with the possible ...
openaire   +2 more sources

Dynamical Analysis in a Delayed Predator-Prey Model with Two Delays

open access: yesDiscrete Dynamics in Nature and Society, 2012
A class of Beddington-DeAngelis functional response predator-prey model is considered. The conditions for the local stability and the existence of Hopf bifurcation at the positive equilibrium of the system are derived.
Changjin Xu, Peiluan Li
doaj   +1 more source

Hopf bifurcations in predator-prey systems with social predator behaviour

open access: yes, 1997
This paper is devoted to the existence of Hopf bifurcations in predator–prey systems under the assumption that the predators show social behaviour.
Pacheco Castelao, José Miguel   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy