Results 31 to 40 of about 170,965 (333)

Classical bifurcations and entanglement in smooth Hamiltonian system [PDF]

open access: yes, 2007
We study entanglement in two coupled quartic oscillators. It is shown that the entanglement, as measured by the von Neumann entropy, increases with the classical chaos parameter for generic chaotic eigenstates.
Arul Lakshminarayan   +6 more
core   +3 more sources

Finite-time nonautonomous bifurcation in impulsive systems

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2016
The purpose of this article is to investigate nonautonomous bifurcation in impulsive differential equations. The impulsive finite-time analogues of transcritical and pitchfork bifurcation are provided.
Marat Akhmet, Ardak Kashkynbayev
doaj   +1 more source

Bifurcation Theory for SPDEs: Finite-time Lyapunov Exponents and Amplitude Equations [PDF]

open access: yesSIAM Journal on Applied Dynamical Systems, 2023
We consider a stochastic partial differential equation close to bifurcation of pitchfork type, where a one-dimensional space changes its stability. For finite-time Lyapunov exponents we characterize regions depending on the distance from bifurcation and ...
D. Blömker, Alexandra Neamţu
semanticscholar   +1 more source

Symmetries in the Lorenz-96 model [PDF]

open access: yes, 2019
The Lorenz-96 model is widely used as a test model for various applications, such as data assimilation methods. This symmetric model has the forcing $F\in\mathbb{R}$ and the dimension $n\in\mathbb{N}$ as parameters and is $\mathbb{Z}_n$ equivariant.
Sterk, Alef E., van Kekem, Dirk L.
core   +2 more sources

Multiple bifurcations and periodic coexistence in a delayed Hopfield two-neural system with a monotonic activation function

open access: yesAdvances in Difference Equations, 2019
In this paper, we consider a delayed Hopfield two-neural system with a monotonic activation function and find the periodic coexistence by bifurcation analysis.
Zigen Song   +3 more
doaj   +1 more source

Bifurcation analysis of a two-dimensional discrete Hindmarsh–Rose type model

open access: yesAdvances in Difference Equations, 2019
In this paper, bifurcation analysis of a discrete Hindmarsh–Rose model is carried out in the plane. This paper shows that the model undergoes a flip bifurcation, a Neimark–Sacker bifurcation, and 1:2 $1:2$ resonance which includes a pitchfork bifurcation,
Bo Li, Qizhi He
doaj   +1 more source

Multi-agent decision-making dynamics inspired by honeybees [PDF]

open access: yes, 2018
When choosing between candidate nest sites, a honeybee swarm reliably chooses the most valuable site and even when faced with the choice between near-equal value sites, it makes highly efficient decisions.
Franci, Alessio   +3 more
core   +1 more source

Slow Passage Through a Pitchfork Bifurcation [PDF]

open access: yesSIAM Journal on Applied Mathematics, 1996
Summary: This paper deals with a class of second-order differential equations with a slowly varying bifurcation parameter. The parameter slowly varies through a critical value corresponding to a transition from a stable equilibrium to one of the two stable branches of an intersecting parabolic curve.
openaire   +2 more sources

Nonautonomous transcritical and pitchfork bifurcations in impulsive systems [PDF]

open access: yesMiskolc Mathematical Notes, 2013
For the first time analogues of nonautonomous transcritical and pitchfork bifurcations are investigated for impulsive systems.
Akhmet, M. U., Kashkynbayev, A.
openaire   +4 more sources

Bifurcation of a feed forward neural network with delay and application in image contrast enhancement

open access: yesMathematical Biosciences and Engineering, 2020
This paper is concerned with how the singularity and delay in a feed forward neural network affect generic dynamics and bifurcations. By computation of Hopf-pitchfork point in a two-parameter nonlinear problem, the mode interactions in two parameters ...
Wenlong Wang, Chunrui Zhang
doaj   +1 more source

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