Results 11 to 20 of about 557 (90)

Accurate reduction of a model of circadian rhythms by delayed quasi steady state assumptions [PDF]

open access: yes, 2013
Quasi steady state assumptions are often used to simplify complex systems of ordinary differential equations in modelling of biochemical processes. The simplified system is designed to have the same qualitative properties as the original system and to ...
Vejchodský, Tomáš
core   +2 more sources

Bifurcations and exact traveling wave solutions for the regularized Schamel equation

open access: yesOpen Mathematics, 2021
In the present paper, we focus on studying the bifurcations and the traveling wave solutions (TWSs) for the regularized Schamel equation. Based on the bifurcation method of a dynamical system, a complete phase portrait analysis is given in various ...
Cai Qiue, Tan Kaixuan, Li Jiang
doaj   +1 more source

Structural stability of the two-fold singularity [PDF]

open access: yes, 2012
At a two-fold singularity, the velocity vector of a flow switches discontinuously across a codimension one switching manifold, between two directions that both lie tangent to the manifold. Particularly intricate dynamics arises when the local flow curves
Angulo Garcia, David   +4 more
core   +1 more source

Bifurcation analysis of HIV infection model with cell-to-cell transmission and non-cytolytic cure

open access: yesComputational and Mathematical Biophysics, 2023
A mathematical model is proposed and discussed to study the effect of cell-to-cell transmission, the non-cytolytic process, and the effect of logistic growth on the dynamics of HIV in vivo.
Prakash Surya   +2 more
doaj   +1 more source

Bifurcation diagrams of one-dimensional Kirchhoff-type equations

open access: yesAdvances in Nonlinear Analysis, 2022
We study the one-dimensional Kirchhoff-type equation −(b+a‖u′‖2)u″(x)=λu(x)p,x∈I≔(−1,1),u(x)>0,x∈I,u(±1)=0,-\left(b+a\Vert u^{\prime} {\Vert }^{2}){u}^{^{\prime\prime} }\left(x)=\lambda u{\left(x)}^{p},\hspace{1em}x\in I:= \left(-1,1),\hspace{1em}u\left ...
Shibata Tetsutaro
doaj   +1 more source

Topology and Homoclinic Trajectories of Discrete Dynamical Systems [PDF]

open access: yes, 2012
We show that nontrivial homoclinic trajectories of a family of discrete, nonautonomous, asymptotically hyperbolic systems parametrized by a circle bifurcate from a stationary solution if the asymptotic stable bundles Es(+{\infty}) and Es(-{\infty}) of ...
A. Abbondandolo   +24 more
core   +2 more sources

Prey-predator model in drainage system with migration and harvesting

open access: yesNonautonomous Dynamical Systems, 2021
In this paper, we consider a prey-predator model with a reserve region of predator where generalist predator cannot enter. Based on the intake capacity of food and other factors, we introduce the predator population which consumes the prey population ...
Roy Banani, Roy Sankar Kumar
doaj   +1 more source

On stability and bifurcation of solutions of an SEIR epidemic model with vertical transmission

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2004, Issue 56, Page 2971-2987, 2004., 2004
A four‐dimensional SEIR epidemic model is considered. The stability of the equilibria is established. Hopf bifurcation and center manifold theories are applied for a reduced three‐dimensional epidemic model. The boundedness, dissipativity, persistence, global stability, and Hopf‐Andronov‐Poincaré bifurcation for the four‐dimensional epidemic model are ...
M. M. A. El-Sheikh, S. A. A. El-Marouf
wiley   +1 more source

Preface. Bifurcations and Pattern Formation in Biological Applications [PDF]

open access: yes, 2016
In the preface we present a short overview of articles included in the issue "Bifurcations and pattern formation in biological applications" of the journal Mathematical Modelling of Natural ...
A. Morozov   +27 more
core   +2 more sources

Impact of fear in a prey-predator system with herd behaviour

open access: yesComputational and Mathematical Biophysics, 2021
Fear of predation plays an important role in the growth of a prey species in a prey-predator system. In this work, a two-species model is formulated where the prey species move in a herd to protect themselves and so it acts as a defense strategy.
Saha Sangeeta, Samanta Guruprasad
doaj   +1 more source

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