Results 11 to 20 of about 115,644 (220)
Global Hopf bifurcation in the ZIP regulatory system [PDF]
Regulation of zinc uptake in roots of Arabidopsis thaliana has recently been modeled by a system of ordinary differential equations based on the uptake of zinc, expression of a transporter protein and the interaction between an activator and inhibitor ...
Ptashnyk, Mariya +4 more
core +1 more source
Singular Hopf Bifurcation [PDF]
This dissertation concerns singular Hopf bifurcation in slow-fast vector fields with one fast and two slow variables. Singular Hopf bifurcation occurs generically in this setting.
Meerkamp, Philipp
core +6 more sources
Bifurcations of global reinjection orbits near a saddle-node Hopf bifurcation [PDF]
The saddle-node Hopf bifurcation (SNH) is a generic codimension-two bifurcation of equilibria of vector fields in dimension at least three. It has been identified as an organizing centre in numerous vector field models arising in applications.
Oldeman, BE +3 more
core +1 more source
A trifurcated waveguide problem II [PDF]
We consider the diffraction of the dominant plane wave mode which propagates out of the end of a semi-infinite waveguide. This waveguide is made up of a half plane with a Dirichlet boundary condition and a half plane with a Neumann boundary condition ...
Rawlins, A D
core +6 more sources
Hopf bifurcation in a gene regulatory network model : molecular movement causes oscillations [PDF]
M.A.J.C. and M.S. gratefully acknowledge the support of the ERC Advanced Investigator Grant 227619, “M5CGS — From Mutations to Metastases: Multiscale Mathematical Modelling of Cancer Growth and Spread”. M.S.
Ptashnyk, Mariya +13 more
core +1 more source
Hopf bifurcation of a delayed predator-prey system with prey infection and the modified Leslie-Gower scheme is investigated. The conditions for the stability and existence of Hopf bifurcation of the system are obtained.
Zizhen Zhang, Huizhong Yang
doaj +1 more source
In this paper, a diffusion two-phytoplankton one-zooplankton model with time delay, Beddington–DeAnglis functional response, and Holling II functional response is proposed.
Xin-You Meng, Li Xiao
doaj +1 more source
Analysing panel flutter in supersonic flow by Hopf bifurcation [PDF]
This paper is devoted to study of a partial differential equation governing panel motion in supersonic flow. This PDE can be transformed to an ODE by means of a Galerkin method.
zahra Monfared, Zohre Dadi
doaj +1 more source
Unfoldings of Singular Hopf Bifurcation [PDF]
Singular Hopf bifurcation occurs in generic families of vector-fields with two slow variables and one fast variable. Normal forms for this bifurcation depend upon several parameters, and the dynamics displayed by the normal forms is intricate. This paper analyzes a normal form for this bifurcation.
John Guckenheimer, Philipp Meerkamp
openaire +3 more sources
Controlling hopf bifurcations: Discrete-time systems
Bifurcation control has attracted increasing attention in recent years. A simple and unified state-feedback methodology is developed in this paper for Hopf bifurcation control for discrete-time systems. The control task can be either shifting an existing
Guanrong Chen +3 more
doaj +1 more source

