Results 51 to 60 of about 170,441 (221)

Complex Behaviors of Epidemic Model with Nonlinear Rewiring Rate

open access: yesComplexity, 2020
An SIS propagation model with the nonlinear rewiring rate on an adaptive network is considered. It is found by bifurcation analysis that the model has the complex behaviors which include the transcritical bifurcation, saddle-node bifurcation, Hopf ...
Ding Fang, Yongxin Zhang, Wendi Wang
doaj   +1 more source

Bifurcation analysis in a discrete predator–prey model with herd behaviour and group defense

open access: yesElectronic Research Archive, 2023
In this paper, we utilize the semi-discretization method to construct a discrete model from a continuous predator-prey model with herd behaviour and group defense.
Jie Xia, Xianyi Li
doaj   +1 more source

Complex Dynamics of a Predator-Prey System With Gompertz Growth and Herd Behavior

open access: yesInternational Journal of Analysis and Applications, 2023
The complex dynamics of a predator-prey system in discrete time are studied. In this system, we consider the prey’s Gompertz growth and the square-root functional response. The existence of fixed points and stability are examined.
Rizwan Ahmed, M. B. Almatrafi
doaj   +1 more source

Finite-time nonautonomous bifurcation in impulsive systems

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2016
The purpose of this article is to investigate nonautonomous bifurcation in impulsive differential equations. The impulsive finite-time analogues of transcritical and pitchfork bifurcation are provided.
Marat Akhmet, Ardak Kashkynbayev
doaj   +1 more source

Complicate dynamics of a discrete predator-prey model with double Allee effect

open access: yesMathematical Modelling and Control, 2022
In this paper, a discrete predator-prey model with double Allee effect is discussed. We first simplify the corresponding continuous predator-prey model, and use the semidiscretization method to obtain a new discrete model.
Shaosan Xia, Xianyi Li
doaj   +1 more source

Bifurcation analysis for Shil'nikov Chaos Electro-dissolution of Copper.

open access: yesZanco Journal of Pure and Applied Sciences, 2022
This paper is devoted to study the local bifurcations and stability of three dimensional systems that representing a Shil'nikov chaos during copper electro-dissolution. The local stability analysis of equilibrium points has been studied.
Jihan Mustafa Mirkhan   +1 more
doaj   +1 more source

Effect of energetic electrons on transcritical bifurcation of low-frequency electrostatic waves in plasma [PDF]

open access: yesمجله علوم و فنون هسته‌ای, 2022
This paper studies the bifurcation types and phase portrait properties of ion-acoustic traveling waves in a plasma comprising warm adiabatic ions and energetic electrons with a nonthermal distribution function. A dynamical system is first derived for the
H. Alinejad
doaj   +1 more source

Bifurcations of Orbit and Inclination Flips Heteroclinic Loop with Nonhyperbolic Equilibria

open access: yesThe Scientific World Journal, 2014
The bifurcations of heteroclinic loop with one nonhyperbolic equilibrium and one hyperbolic saddle are considered, where the nonhyperbolic equilibrium is supposed to undergo a transcritical bifurcation; moreover, the heteroclinic loop has an orbit flip ...
Fengjie Geng, Junfang Zhao
doaj   +1 more source

Dynamic analysis of a new aquatic ecological model based on physical and ecological integrated control

open access: yesMathematical Biosciences and Engineering, 2023
Within the framework of physical and ecological integrated control of cyanobacteria bloom, because the outbreak of cyanobacteria bloom can form cyanobacteria clustering phenomenon, so a new aquatic ecological model with clustering behavior is proposed to
Qiulin Huang   +5 more
doaj   +1 more source

Modeling and Analyzing the Influence of Fear on the Harvested Modified Leslie-Gower Model

open access: yesمجلة بغداد للعلوم, 2023
A modified Leslie-Gower predator-prey model with a Beddington-DeAngelis functional response is proposed and studied. The purpose is to examine the effects of fear and quadratic fixed effort harvesting on the system's dynamic behavior.
Abdul Rahman Mahmoud Jamil   +1 more
doaj   +1 more source

Home - About - Disclaimer - Privacy