Results 41 to 50 of about 2,227 (204)

Analyzing Predator-Prey Interaction in Chaotic and Bifurcating Environments

open access: yesChaos Theory and Applications, 2023
An analysis of discrete-time predator-prey systems is presented in this paper by determining the minimum amount of prey consumed before predators reproduce, as well as by analyzing the system's stability and bifurcation. In order to investigate the local
Abdul Khaliq, Ansar Abbas
doaj   +1 more source

Bifurcation Analysis for a Two-Dimensional Discrete-Time Hopfield Neural Network with Delays

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2007
A bifurcation analysis is undertaken for a discrete-time Hopfield neural network with four delays. Conditions ensuring the asymptotic stability of the null solution are obtained with respect to two parameters of the system.
Yaping Ren, Yongkun Li
doaj   +1 more source

Analytical investigation of single and double Neimark-Sacker bifurcations

open access: yesPeriodica Polytechnica Mechanical Engineering, 2012
The analytical investigation of bifurcations is a very challenging task for many applied scientists and engineers. Often, numerical simulations cannot clarify the complicated dynamics of mechanical systems, in this cases, preprogrammed softwares can be of valid help during the investigation.
HABIB, Giuseppe   +2 more
openaire   +4 more sources

Neimark–Sacker bifurcation and stability analysis of a discrete-time prey–predator model with Allee effect in prey

open access: yesAdvances in Difference Equations, 2019
In this paper, the dynamical behaviors of a discrete-time prey–predator model with Allee effect on the prey population are investigated. The existence and topological classification of the fixed points of the model are analyzed.
Figen Kangalgil
doaj   +1 more source

Implementation of a digital evaluation platform to analyze bifurcation based nonlinear amplifiers [PDF]

open access: yesAdvances in Radio Science, 2016
Recently, nonlinear amplifiers based on the supercritical Andronov–Hopf bifurcation have become a focus of attention, especially in the modeling of the mammalian hearing organ.
S. Feldkord, M. Reit, W. Mathis
doaj   +1 more source

Calculation of coefficients of simplest normal forms of Neimark-Sacker and generalized Neimark-Sacker bifurcations

open access: yesJournal of Physics: Conference Series, 2008
The coefficients of the simplest normal forms of both high-dimensional Neimark-Sacker and generalized Neimark-Sacker bifurcation systems were discussed. On the basis of the simplest normal form theory, using appropriate nonlinear transformations, direct computation and the second complete induction, the central manifold equations were further reduced ...
Q-C Zhang, R-L Tian
openaire   +1 more source

A Novel Discrete-Time Leslie–Gower Model with the Impact of Allee Effect in Predator Population

open access: yesComplexity, 2022
The discrete-time system has more complex and chaotic dynamical behaviors as compared to the continuous-time system. This paper extends a discrete Leslie–Gower predator-prey system with the Allee effect in the predator’s population, whose dynamics are ...
S. Vinoth   +5 more
doaj   +1 more source

Periodic orbits in tall laterally heated rectangular cavities [PDF]

open access: yes, 2017
This study elucidates the origin of the multiplicity of stable oscillatory flows detected by time integration in tall rectangular cavities heated from the side.
Net Marcé, Marta   +1 more
core   +2 more sources

Dynamic Behavior and Bifurcation Analysis of a Difference Equation Including Exponential Terms

open access: yesPan-American Journal of Mathematics
In this paper, the local stability, the boundedness, rate of convergence and the conditions of Neimark-Sacker bifurcation concerning difference equation xn+1=α1xn+α2xn-1+β1xnexp(-x2n-1)+β2xn-1exp(-x2n-1), n=0,1, ..., are investigated.
A.A. Elsadany   +2 more
doaj   +1 more source

Coexisting patterns of population oscillations: the degenerate Neimark Sacker bifurcation as a generic mechanism

open access: yes, 2010
We investigate a population dynamics model that exhibits a Neimark Sacker bifurcation with a period that is naturally close to 4. Beyond the bifurcation, the period becomes soon locked at 4 due to a strong resonance, and a second attractor of period 2 ...
A. Pikovsky   +8 more
core   +1 more source

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