Results 131 to 140 of about 26,001 (267)

Saddle-node bifurcation of homoclinic orbits in singular systems

open access: yesDiscrete & Continuous Dynamical Systems - A, 2001
The author studies the following singularly perturbed system \[ \dot \xi=f_0(\xi)+\varepsilon f_1(\xi ,\eta ,\varepsilon),\quad \dot \eta =\varepsilon g(\xi ,\eta ,\varepsilon) ,\tag{1} \] where \(\xi \in \Omega \subset \mathbb{R}^n\), \(\eta \in \mathbb{R}\) and \(\varepsilon \in \mathbb{R}\) is a small parameter. It is assumed that the boundary layer
openaire   +4 more sources

Bifurcation Analysis of the Dynamics in COVID-19 Transmission through Living and Nonliving Media

open access: yesJournal of Applied Mathematics
Transmission of COVID-19 occurs either through living media, such as interaction with a sufferer, or nonliving objects contaminated with the virus. Recovering sufferers and disinfectant spraying prevent interaction between people and virus become the ...
Ario Wiraya   +5 more
doaj   +1 more source

Bifurcation analysis of an SIS model with a modified nonlinear incidence rate

open access: yesElectronic Research Archive
A modified nonlinear incidence rate in an SIS epidemic model was investigated. When a new disease emerged or an old one resurged, the infectivity was initially high. Subsequently, the psychological effect attenuated the infectivity.
Jianzhi Cao   +3 more
doaj   +1 more source

Rigorous verification of saddle–node bifurcations in ODEs

open access: yesIndagationes Mathematicae, 2016
Abstract In this paper, we introduce a general method for the rigorous verification of saddle–node bifurcations in ordinary differential equations. The approach is constructive in the sense that we obtain precise and explicit bounds within which the saddle–node bifurcation occurs. After introducing a set of sufficient generic conditions, an algorithm
openaire   +2 more sources

Shilnikov saddle-node bifurcation

open access: yesScholarpedia, 2008
Andrey Shilnikov, Leonid P Shilnikov
openaire   +1 more source

Regularization of the Boundary Equilibrium Bifurcation in Filippov System with Rich Discontinuity Boundaries

open access: yesAxioms
This paper studies a particular type of planar Filippov system that consists of two discontinuity boundaries separating the phase plane into three disjoint regions with different dynamics. This type of system has wide applications in various subjects. As
Nanbin Cao, Yue Zhang, Xia Liu
doaj   +1 more source

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