Results 41 to 50 of about 26,001 (267)

Predicting saddle-node bifurcations using transient dynamics: a model-free approach

open access: yesNonlinear dynamics, 2023
This paper proposes a novel method for predicting the presence of saddle-node bifurcations in dynamical systems. The method exploits the effect that saddle-node bifurcations have on transient dynamics in the surrounding phase space and parameter space ...
Giuseppe Habib
semanticscholar   +1 more source

Complex Behaviors of Epidemic Model with Nonlinear Rewiring Rate

open access: yesComplexity, 2020
An SIS propagation model with the nonlinear rewiring rate on an adaptive network is considered. It is found by bifurcation analysis that the model has the complex behaviors which include the transcritical bifurcation, saddle-node bifurcation, Hopf ...
Ding Fang, Yongxin Zhang, Wendi Wang
doaj   +1 more source

Reaction rates and the noisy saddle-node bifurcation: Renormalization group for barrier crossing [PDF]

open access: yes, 2019
Barrier crossing calculations in chemical reaction-rate theory typically assume that the barrier is large compared to the temperature. When the barrier vanishes, however, there is a qualitative change in behavior. Instead of crossing a barrier, particles
David Hathcock, J. Sethna
semanticscholar   +1 more source

The bifurcation of constrained optimization optimal solutions and its applications

open access: yesAIMS Mathematics, 2023
The appearance and disappearance of the optimal solution for the change of system parameters in optimization theory is a fundamental problem. This paper aims to address this issue by transforming the solutions of a constrained optimization problem into ...
Tengmu Li, Zhiyuan Wang
doaj   +1 more source

Dynamic behaviors of a Leslie-Gower model with strong Allee effect and fear effect in prey

open access: yesMathematical Biosciences and Engineering, 2023
We incorporate the strong Allee effect and fear effect in prey into a Leslie-Gower model. The origin is an attractor, which implies that the ecological system collapses at low densities.
Zhenliang Zhu   +3 more
doaj   +1 more source

Accumulating regions of winding periodic orbits in optically driven lasers [PDF]

open access: yes, 2001
We investigate the route to locking in class B lasers subject to optically injected light for injection strengths and detunings near a codimension-two saddle-node Hopf point.
Krauskopf, B, Wieczorek, Sebastian
core   +2 more sources

Dynamics of a Discrete Leslie–Gower Model with Harvesting and Holling-II Functional Response

open access: yesMathematics, 2023
Recently, Christian Cortés García proposed and studied a continuous modified Leslie–Gower model with harvesting and alternative food for predator and Holling-II functional response, and proved that the model undergoes transcritical bifurcation, saddle ...
Chen Zhang, Xianyi Li
doaj   +1 more source

Unified model of voltage/current mode control to predict saddle-node bifurcation [PDF]

open access: yesarXiv.org, 2012
A unified model of voltage mode control (VMC) and current mode control (CMC) is proposed to predict the saddle-node bifurcation (SNB). Exact SNB boundary conditions are derived, and can be further simplified in various forms for design purpose.
C. Fang
semanticscholar   +1 more source

Transient localized wave patterns and their application to migraine [PDF]

open access: yes, 2012
Transient dynamics is pervasive in the human brain and poses challenging problems both in mathematical tractability and clinical observability. We investigate statistical properties of transient cortical wave patterns with characteristic forms (shape ...
Dahlem, Markus A, Isele, Thomas M
core   +2 more sources

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