Results 81 to 90 of about 228,096 (272)

Hopf Bifurcation and Hybrid Control of a Delayed Ecoepidemiological Model with Nonlinear Incidence Rate and Holling Type II Functional Response

open access: yesMathematical Problems in Engineering, 2018
Hopf bifurcation analysis of a delayed ecoepidemiological model with nonlinear incidence rate and Holling type II functional response is investigated. By analyzing the corresponding characteristic equations, the conditions for the stability and existence
Miao Peng   +3 more
semanticscholar   +1 more source

The monodromy in the Hamiltonian Hopf bifurcation [PDF]

open access: yesZeitschrift für angewandte Mathematik und Physik, 1998
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +5 more sources

Anti-control of Hopf bifurcation for a chaotic system

open access: yesNonlinear 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

Population Dynamic Study of Prey-Predator Interactions with Weak Allee Effect, Fear Effect, and Delay

open access: yesJournal of Mathematics, 2022
In this study, a predator-prey model with the Allee effect and fear effect is established. We use the comparison principle to prove boundedness. The zero equilibrium point and nonzero equilibrium point of the model are calculated, and the local stability
Ye Xuan Li   +5 more
doaj   +1 more source

Spatiotemporal attractors generated by the Turing-Hopf bifurcation in a time-delayed reaction-diffusion system [PDF]

open access: yesDiscrete & Continuous Dynamical Systems - B, 2017
We study the Turing-Hopf bifurcation and give a simple and explicit calculation formula of the normal forms for a general two-components system of reaction-diffusion equation with time delays. We declare that our formula can be automated by Matlab.
Qi An, Weihua Jiang
semanticscholar   +1 more source

On a quasi-periodic Hopf bifurcation [PDF]

open access: yesAnnales de l'Institut Henri Poincaré C, Analyse non linéaire, 1987
In this paper we study quasi-periodic Hopf bifurcations for the model problem of a quasi-periodically forced oscillator, where the frequencies remain fixed. For this purpose we first consider Stoker’s problem for small damping. Résumé Dans cet article, nous étudions les bifurcations de Hopf quasi-périodiques pour le ...
Boele Braaksma, Hendrik Broer
openaire   +4 more sources

Action functional as an early warning indicator in the space of probability measures via Schrödinger bridge

open access: yesQuantitative Biology, Volume 13, Issue 3, September 2025.
Abstract Critical transitions and tipping phenomena between two meta‐stable states in stochastic dynamical systems are a scientific issue. In this work, we expand the methodology of identifying the most probable transition pathway between two meta‐stable states with Onsager–Machlup action functional, to investigate the evolutionary transition dynamics ...
Peng Zhang   +3 more
wiley   +1 more source

Dynamical Analysis of a Delayed Diffusive Predator–Prey Model with Additional Food Provided and Anti-Predator Behavior

open access: yesMathematics, 2022
We studied a delayed predator–prey model with diffusion and anti-predator behavior. Assume that additional food is provided for predator population. Then the stability of the positive equilibrium is considered.
Ruizhi Yang, Xiao Zhao, Yong An
doaj   +1 more source

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

open access: yes, 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   +46 more
core   +1 more source

The Hopf bifurcation for nonlinear semigroups [PDF]

open access: yesBulletin of the American Mathematical Society, 1973
Several authors, have shown by perturbation techniques that the Hopf theorem on the development of periodic stable solutions is valid for the Navier-Stokes equations; in particular, solutions near the stable periodic ones remain defined and smooth for all t ≥ 0 . The principal difficulty is that the Hopf theorem deals with flows of smooth vector fields
openaire   +5 more sources

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