Results 51 to 60 of about 33,473 (203)

Stability and Hopf bifurcation on an SEIR delayed model with logistic growth [PDF]

Songklanakarin Journal of Science and Technology (SJST), 2018
This paper investigates the stability and Hopf bifurcation of SEIR delay model with logistic growth. Firstly, the existence and uniqueness of equilibrium point are analyzed.
Aekabut Sirijampa, Settapat Chinviriyasit, Wirawan Chinviriyasit   +2 more
doaj   +1 more source

Eco‐Epidemiological Mathematical Model Analysis With Time Delays and Hopf Bifurcation

Natural Resource Modeling, Volume 39, Issue 2, May 2026.
ABSTRACT Ecological and infection predator prey mathematical model is important tool for understanding complex systems and forecasting outcomes biologically. Incorporating saturation mass action incidence rates representing the rate of susceptible prey infection as a function of time along with time delay terms, makes more realistic and reflective of ...
Solomon Molla Alemu, Mohammed Yiha Dawed, Tesfaye Tefera Mamo   +2 more
wiley   +1 more source

一类具有临时免疫的时滞蠕虫传播模型的Hopf分支(Delay induced Hopf bifurcation in a worm propagation model with partial immunization)

Zhejiang Daxue xuebao. Lixue ban, 2016
This paper is devoted to Hopf bifurcation of a delayed SVEIR model with partial immunization that describes worms propagation on internet. Sufficient conditions for existence of Hopf bifurcation are obtained by considering the latent period time delay of
ZHANGZizhen(张子振), BIDianjie(毕殿杰), ZHAOTao(赵涛)   +2 more
doaj   +1 more source

Are physiological oscillations physiological?

The Journal of Physiology, Volume 604, Issue 9, Page 3672-3693, 1 May 2026.
Abstract figure legend Mechanisms and functions of physiological oscillations. Abstract Despite widespread and striking examples of physiological oscillations, their functional role is often unclear. Even glycolysis, the paradigm example of oscillatory biochemistry, has seen questions about its oscillatory function.
Lingyun (Ivy) Xiong, Alan Garfinkel
wiley   +1 more source

Anti-control of Hopf bifurcation for a chaotic system

Nonlinear Engineering
The anti-control of Hopf bifurcation is a method used for bifurcation control. It can be used to realize the occurrence or delay of bifurcation at the specified position to meet the needs of engineering applications. In this study, a 4D chaotic system is
Zhang Liang, Han Qin
doaj   +1 more source

Time-delayed feedback control of unstable periodic orbits near a subcritical Hopf bifurcation

, 2010
We show that Pyragas delayed feedback control can stabilize an unstable periodic orbit (UPO) that arises from a generic subcritical Hopf bifurcation of a stable equilibrium in an n-dimensional dynamical system. This extends results of Fiedler et al. [PRL
Bar-Eli, C.M. Postlethwaite, Campbell, Campbell, Campbell, Crawford, Dombovari, Dombovari, El’sgol’ts, Faria, Fiedler, Fiedler, Field, G. Brown, Golubitsky, Golubitsky, Guckenheimer, Guckenheimer, Hale, Hale, Hassard, Just, Kalmar-Nagy, M. Silber, Montgomery, Nakajima, Nayfeh, Orosz, Orosz, Ott, Postlethwaite, Postlethwaite, Postlethwaite, Pyragas, Pyragas, Pyragas, Pyragas, Pyragas, Pyragas, Qesmi, Sieber, Sparrow, Stone, Strogatz, Stépán, von Loewenich, Wiggins   +46 more
core   +1 more source

Bifurcation Analysis of a Resource–Consumer System With Explicit Spatiotemporal Memory

Studies in Applied Mathematics, Volume 156, Issue 4, April 2026.
ABSTRACT In ecological systems, animal movement is often influenced by memory and spatial cognition, especially in advanced species. This paper investigates the dynamics of a diffusive resource–consumer model incorporating explicit spatiotemporal distributed memory, where memory effects are modeled as distributed delays in both time and space.
Luhong Ye, Hao Wang
wiley   +1 more source

Bursting Oscillations in General Coupled Systems: A Review

Mathematics, 2023
In this paper, the bursting oscillation phenomenon in coupled systems with two time scales is introduced. Firstly, several types of bifurcation are briefly introduced: fold bifurcation, Hopf bifurcation, fold limit cycle bifurcation, homoclinic ...
Danjin Zhang, Youhua Qian
doaj   +1 more source

Multiple bursting patterns in lateral habenula neurons: Experiments and computational model

The Journal of Physiology, Volume 604, Issue 8, Page 3396-3412, 15 April 2026.
Abstract figure legend LHb neurons display a variety of bursting patterns, as well as being silent or displaying a tonic or irregular firing pattern. In a set of patch‐clamp experiments in ex vivo mouse lateral habenula (LHb), we were able to record from a number of cells showing characteristic bursts of a few distinguishable types.
Dmitry Fedorov, Fabien Campillo, Mathieu Desroches, Edgar Soria‐Gómez, Serafim Rodrigues, Joaquin Piriz   +5 more
wiley   +1 more source

Wave propagation in the Lorenz-96 model [PDF]

Nonlinear Processes in Geophysics, 2018
In this paper we study the spatiotemporal properties of waves in the Lorenz-96 model and their dependence on the dimension parameter n and the forcing parameter F.
D. L. van Kekem, A. E. Sterk
doaj   +1 more source