Results 11 to 20 of about 35,466 (285)

Saddle-Node Bifurcations in Classical and Memristive Circuits [PDF]

open access: greenInternational Journal of Bifurcation and Chaos, 2016
This paper addresses a systematic characterization of saddle-node bifurcations in nonlinear electrical and electronic circuits. Our approach is a circuit-theoretic one, meaning that the bifurcation is analyzed in terms of the devices’ characteristics and the graph-theoretic properties of the digraph underlying the circuit.
Ignacio Garcı́a de la Vega   +1 more
core   +7 more sources

Saddle-node bifurcation of viscous profiles.

open access: yesPhysica D, 2012
Traveling wave solutions of viscous conservation laws, that are associated to Lax shocks of the inviscid equation, have generically a transversal viscous profile. In the case of a non-transversal viscous profile we show by using Melnikov theory that a parametrized perturbation of the profile equation leads generically to a saddle-node bifurcation of ...
Achleitner F, Szmolyan P.
europepmc   +4 more sources

A double saddle-node bifurcation theorem

open access: greenCommunications on Pure & Applied Analysis, 2013
In this paper, we consider an abstract equation $F(\lambda,u)=0$ with one parameter $\lambda$, where $F\in C^p(\mathbb{R} \times X, Y)$, $p\geq 2$, is a nonlinear differentiable mapping, and $X,Y$ are Banach spaces. We apply Lyapunov-Schmidt procedure and Morse Lemma to obtain a "double" saddle-node bifurcation theorem with a two-dimensional ...
Ping Liu, Junping Shi, Yuwen Wang
semanticscholar   +4 more sources

Bifurcations of global reinjection orbits near a saddle-node Hopf bifurcation [PDF]

open access: greenNonlinearity, 2006
The saddle-node Hopf bifurcation (SNH) is a generic codimension-two bifurcation of equilibria of vector fields in dimension at least three. It has been identified as an organizing centre in numerous vector field models arising in applications. We consider here the case that there is a global reinjection mechanism, because the centre manifold of the ...
Bernd Krauskopf, Bart E. Oldeman
core   +10 more sources

Regularization of the Boundary-Saddle-Node Bifurcation [PDF]

open access: yesAdvances in Mathematical Physics, 2018
In this paper we treat a particular class of planar Filippov systems which consist of two smooth systems that are separated by a discontinuity boundary. In such systems one vector field undergoes a saddle-node bifurcation while the other vector field is ...
Xia Liu
doaj   +3 more sources

Backward bifurcation and saddle-node bifurcation in virus-immune dynamics [PDF]

open access: yesarXiv, 2021
Recently, Wang and Xu [ Appl. Math. Lett. 78 (2018) 105-111] studied thresholds and bi-stability in virus-immune dynamics. In this paper, we show there also exist backward bifurcation and saddle node bifurcation in this model. Our investigation demonstrates the existence of post-bifurcation phenomenon in the system when the immune strength was selected
Wang, Tengfei, Wang, Shaoli, Xu, Fei
arxiv   +3 more sources

Universal Scaling in Saddle-Node Bifurcation Cascades (II) Intermittency Cascade [PDF]

open access: greenarXiv, 2005
The presence of saddle-node bifurcation cascade in the logistic equation is associated with an intermittency cascade; in a similar way as a saddle-node bifurcation is associated with an intermittency. We merge the concepts of bifurcation cascade and intermittency.
Jesús San-Martín
arxiv   +3 more sources

Tipping Points Near a Delayed Saddle Node Bifurcation with Periodic Forcing [PDF]

open access: yesSIAM Journal on Applied Dynamical Systems, 2014
We consider the effect on tipping from an additive periodic forcing in a canonical model with a saddle node bifurcation and a slowly varying bifurcation parameter.
Jielin Zhu, R. Kuske, T. Erneux
semanticscholar   +3 more sources

Theoretical analysis for critical fluctuations of relaxation trajectory near a saddle-node bifurcation. [PDF]

open access: yesPhysical review. E, Statistical, nonlinear, and soft matter physics, 2010
A Langevin equation whose deterministic part undergoes a saddle-node bifurcation is investigated theoretically. It is found that statistical properties of relaxation trajectories in this system exhibit divergent behaviors near a saddle-node bifurcation ...
Mami Iwata, S. Sasa
semanticscholar   +3 more sources

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