Results 21 to 30 of about 4,638,122 (311)

Dynamical analysis of a fractional-order eco-epidemiological model with disease in prey population

open access: yesAdvances in Difference Equations, 2020
A fractional-order eco-epidemiological model with disease in the prey population is formulated and analyzed. Mathematical analysis and numerical simulations are performed to clarify the characteristics of the proposed fractional-order model.
Mahmoud Moustafa   +3 more
doaj   +1 more source

Global Dynamics and Bifurcations of an Oscillator with Symmetric Irrational Nonlinearities

open access: yesFractal and Fractional, 2023
This study’s objective is an irrationally nonlinear oscillating system, whose bifurcations and consequent multi-stability under the circumstances of single potential well and double potential wells are investigated in detail to further reveal the ...
Rong Liu, Huilin Shang
doaj   +1 more source

Hopf bifurcation analysis in a predator–prey model with time delay and food subsidies

open access: yesAdvances in Difference Equations, 2019
We analyze the stability of positive equilibrium in a predator-prey model with time delay τ and subsidies. The sufficient conditions of the local Hopf bifurcations at the positive equilibrium are obtained.
Yuxiao Guo, Nannan Ji, Ben Niu
doaj   +1 more source

Analysis of a Heterogeneous Trader Model for Asset Price Dynamics

open access: yesDiscrete Dynamics in Nature and Society, 2011
We examine an asset pricing model of Westerhoff (2005). The model incorporates heterogeneous beliefs among traders, specifically fundamentalists and trend-chasing chartists. The form of the model is shown here to be a nonlinear planar map.
Andrew Foster, Natasha Kirby
doaj   +1 more source

Bifurcations and Invariant Sets in a Class of Two-Dimensional Endomorphisms

open access: yesInternational Journal of Analysis and Applications, 2019
Several endomorphisms of the plane have been constructed by simple maps. We study the dynamics occuring in one of them, which is rich in global bifurcations.
Djellit Ilham   +2 more
doaj   +2 more sources

Asset price dynamics in a financial market with fundamentalists and chartists

open access: yesDiscrete Dynamics in Nature and Society, 2001
In this paper we consider a model of the dynamics of speculative markets involving the interaction of fundamentalists and chartists. The dynamics of the model are driven by a two-dimensional map that in the space of the parameters displays regions of ...
Carl Chairella   +2 more
doaj   +1 more source

Scientific legacy of L. P. Shilnikov: to the 90th anniversary [PDF]

open access: yesИзвестия высших учебных заведений: Прикладная нелинейная динамика
This year we celebrate the 90th anniversary of Leonid Pavlovich Shilnikov (1934-2011), an outstanding Russian mathematician and one of the founders of the mathematical theory of dynamic chaos and the theory of global bifurcations of multidimensional ...
Gonchenko, Sergey Vladimirovich   +1 more
doaj   +1 more source

Stability and Hopf bifurcation of a two species malaria model with time delays

open access: yesLetters in Biomathematics, 2017
We present a mathematical model of the transmission dynamics of two species of malaria with time lags. The model is equally applicable to two strains of a malaria species.
Ephraim Agyingi   +2 more
doaj   +1 more source

Bifurcations of stagnation points in a micropolar fluent media under the influence of an asymmetric peristaltic movement

open access: yesAIP Advances, 2020
In the present analysis, the effects of an asymmetric peristaltic movement on the bifurcations of stagnation points have been investigated. An exact analytic solution for a flow of an incompressible micropolar fluid has been established under long ...
Nasir Ali, Kaleem Ullah
doaj   +1 more source

Bifurcations of Nonconstant Solutions of the Ginzburg-Landau Equation

open access: yesAbstract and Applied Analysis, 2012
We study local and global bifurcations of nonconstant solutions of the Ginzburg-Landau equation from the families of constant ones. As the topological tools we use the equivariant Conley index and the degree for equivariant gradient maps.
Norimichi Hirano, Sławomir Rybicki
doaj   +1 more source

Home - About - Disclaimer - Privacy