Results 51 to 60 of about 875 (196)

The driven-dissipative Bose–Hubbard dimer: phase diagram and chaos

open access: yesNew Journal of Physics, 2020
We present the phase diagram of the mean-field driven-dissipative Bose–Hubbard dimer model. For a dimer with repulsive on-site interactions ( U  > 0) and coherent driving, we prove that ${{\mathbb{Z}}}_{2}$ -symmetry breaking, via pitchfork bifurcations ...
Andrus Giraldo   +4 more
doaj   +1 more source

A Stochastic Pitchfork Bifurcation in Most Probable Phase Portraits [PDF]

open access: yesInternational Journal of Bifurcation and Chaos, 2018
We study stochastic bifurcation for a system under multiplicative stable Lévy noise (an important class of non-Gaussian noise), by examining the qualitative changes of equilibrium states with its most probable phase portraits. We have found some peculiar bifurcation phenomena in contrast to the deterministic counterpart: (i) When the non-Gaussianity ...
Jinqiao Duan   +3 more
openaire   +3 more sources

Cusp points and pitchfork interactions in equivariant bifurcation problems

open access: yesDifferential and Integral Equations, 1993
The relation between the concept of a cusp point for a mapping between Banach spaces and the interaction of two classical pitchfork bifurcations in equivariant spaces is considered. 2 parameter problems are considered by an approach based on linear normal form theory, Lyapunov-Schmidt reduction and restriction to solutions with appropriate isotropies ...
LUPO, DANIELA ELISABETTA   +1 more
openaire   +4 more sources

Nonlinear Magnetoconvection in a Sparsely Packed Porous Medium

open access: yesInternational Journal of Geophysics, 2011
Linear and weakly nonlinear properties of magnetoconvection in a sparsely packed porous medium are investigated. We have obtained the values of Takens-Bogdanov bifurcation points and codimension two bifurcation points by plotting graphs of neutral curves
A. Benerji Babu   +2 more
doaj   +1 more source

Bifurcation analysis and dynamics of a Lorenz –type dynamical system

open access: yesپژوهش‌های ریاضی, 2017
./files/site1/files/0Abstract1.pdfIn this paper we consider a continues Lorenz – type dynamical system. Dynamical behaviors of this system such as computing equilibrium points, different bifurcation curves and computation of normal form coefficient of ...
Behnaz Rahmani   +3 more
doaj  

Prebifurcation noise amplification and noise-dependent hysteresis as indicators of bifurcations in nonlinear geophysical systems [PDF]

open access: yesNonlinear Processes in Geophysics, 2005
The phenomena of prebifurcation noise amplification and noise-dependent hysteresis are studied as prospective indicators of bifurcations ('noisy precursor') in nonlinear Geophysical systems. The phenomenon of prebifurcation noise amplification arises due
E. Surovyatkina
doaj  

Bogdanov-Takens bifurcations in the enzyme-catalyzed reaction comprising a branched network

open access: yesMathematical Biosciences and Engineering, 2017
There have been some results on bifurcations of codimension one (such as saddle-node, transcritical, pitchfork) and degenerate Hopf bifurcations for an enzyme-catalyzed reaction system comprising a branched network but no further discussion for ...
Qiuyan Zhang   +2 more
doaj   +1 more source

Early‐Warning Signals for Critical Temperature Transitions

open access: yesGeophysical Research Letters, 2020
Critical transitions of the state variable (temperature) in dynamic climate systems often lead to catastrophic consequence, whereas the effort to reverse the transitions usually lags behind.
Chenghao Wang, Zhi‐Hua Wang, Linda Sun
doaj   +1 more source

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