Results 1 to 10 of about 26,001 (267)

Dynamics of a Beddington-DeAngelis type predator-prey system with constant rate harvesting

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2017
In the paper, a predator-prey system with Beddington-DeAngelis functional response and constant rate harvesting is considered. Various dynamical behaviors of the system including saddle-node points and a cusp of codimension 2 are investigated by using ...
Jaeun Lee, Hunki Baek
doaj   +1 more source

Analysis of modified Holling-Tanner model with strong Allee effect

open access: yesMathematical Biosciences and Engineering, 2023
In this paper, we study a predator-prey system, the modified Holling-Tanner model with strong Allee effect. The existence and stability of the non-negative equilibria are discussed first.
Kunlun Huang, Xintian Jia, Cuiping Li
doaj   +1 more source

Bogdanov–Takens Bifurcation in a Shape Memory Alloy Oscillator with Delayed Feedback

open access: yesComplexity, 2020
This work is focused on a shape memory alloy oscillator with delayed feedback. The main attention is to investigate the Bogdanov–Takens (B-T) bifurcation by choosing feedback parameters A1,2 and time delay τ.
Jinbin Wang, Lifeng Ma
doaj   +1 more source

Spatial Effects of Phase Dynamics on Oscillators Close to Bifurcation

open access: yesMathematics, 2023
The phase reduction approach has manifested its efficacy in investigating synchronization behaviors in limit-cycle oscillators. However, spatial distributions of the phase value on the limit cycle may lead to illusions of synchronizations for oscillators
Yihan Wang, Jinjie Zhu
doaj   +1 more source

Bifurcations of a Ratio-Dependent Holling-Tanner System with Refuge and Constant Harvesting

open access: yesAbstract and Applied Analysis, 2013
The bifurcation properties of a predator prey system with refuge and constant harvesting are investigated. The number of the equilibria and the properties of the system will change due to refuge and harvesting, which leads to the occurrence of several ...
Xia Liu, Yepeng Xing
doaj   +1 more source

Dynamical Mechanism of Hyperpolarization-Activated Non-specific Cation Current Induced Resonance and Spike-Timing Precision in a Neuronal Model

open access: yesFrontiers in Cellular Neuroscience, 2018
Hyperpolarization-activated cyclic nucleotide-gated cation current (Ih) plays important roles in the achievement of many physiological/pathological functions in the nervous system by modulating the electrophysiological activities, such as the rebound ...
Zhiguo Zhao   +3 more
doaj   +1 more source

Complex dynamics of a predator–prey model with opportunistic predator and weak Allee effect in prey

open access: yesJournal of Biological Dynamics, 2023
In this work, we first modify a Lotka–Volterra predator–prey system to incorporate an opportunistic predator and weak Allee effect in prey. The prey will be extinct if the combined effect of hunting and other food resources of predator is large ...
Zhenliang Zhu   +3 more
doaj   +1 more source

Random load fluctuations and collapse probability of a power system operating near codimension 1 saddle-node bifurcation [PDF]

open access: yesIEEE Power & Energy Society General Meeting, 2012
For a power system operating in the vicinity of the power transfer limit of its transmission system, effect of stochastic fluctuations of power loads can become critical as a sufficiently strong such fluctuation may activate voltage instability and lead ...
D. Podolsky, K. Turitsyn
semanticscholar   +1 more source

Homoclinic Saddle-Node Bifurcations in Singularly Perturbed Systems [PDF]

open access: yesJournal of Dynamics and Differential Equations, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Doelman, A., Hek, G.M.
openaire   +4 more sources

Predicting non-stationary and stochastic activation of saddle-node bifurcation in non-smooth dynamical systems

open access: yesVolume 2: Modeling, Simulation and Control; Bio-Inspired Smart Materials and Systems; Energy Harvesting, 2016
Saddle-node bifurcation can cause dynamical systems undergo large and sudden transitions in their response, which is very sensitive to stochastic and non-stationary influences that are unavoidable in practical applications.
Jin-Ki Kim, R. Harne, Kon-Well Wang
semanticscholar   +1 more source

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