Results 31 to 40 of about 633,095 (156)

Breakdown of a 2D Heteroclinic Connection in the Hopf-Zero Singularity (I) [PDF]

open access: yesJournal of Nonlinear Science, 2018
In this paper we study a beyond all order phenomenon which appears in the analytic unfoldings of the Hopf-zero singularity. It consists in the breakdown of a two-dimensional heteroclinic surface which exists in the truncated normal form of this singularity at any order.
Baldomá Barraca, Inmaculada   +2 more
openaire   +4 more sources

On the loss of compactness in the vectorial heteroclinic connection problem [PDF]

open access: yesProceedings of the Royal Society of Edinburgh: Section A Mathematics, 2016
We give an alternative proof of the theorem of Alikakos and Fusco concerning existence of heteroclinic solutionsU: ℝ → ℝNto the systemHerea±are local minima of a potentialW∈C2(ℝN) withW(a±) = 0. This system arises in the theory of phase transitions. Our method is variational but differs from the original artificial constraint method of Alikakos and ...
openaire   +3 more sources

Saddle-center and periodic orbit: Dynamics near symmetric heteroclinic connection [PDF]

open access: yesChaos: An Interdisciplinary Journal of Nonlinear Science, 2021
An analytic reversible Hamiltonian system with two degrees of freedom is studied in a neighborhood of its symmetric heteroclinic connection made up of a symmetric saddle-center, a symmetric orientable saddle periodic orbit lying in the same level of a Hamiltonian, and two non-symmetric heteroclinic orbits permuted by the involution.
L. M. Lerman, K. N. Trifonov
openaire   +4 more sources

Bifurcations of stagnation points in a micropolar fluent media under the influence of an asymmetric peristaltic movement

open access: yesAIP Advances, 2020
In the present analysis, the effects of an asymmetric peristaltic movement on the bifurcations of stagnation points have been investigated. An exact analytic solution for a flow of an incompressible micropolar fluid has been established under long ...
Nasir Ali, Kaleem Ullah
doaj   +1 more source

Heteroclinic-structure transition of the pure quartic modulation instability

open access: yes, 2022
We show that, in the pure-quartic systems, modulation instability (MI) undergoes heteroclinic-structure transitions (HSTs) at two critical frequencies of {\omega} c1 and {\omega} c2 ( {\omega} c2 > {\omega} c1 ), which indicates that there are ...
Chong Liu (450204)   +3 more
core   +1 more source

Robust sequential working memory recall in heterogeneous cognitive networks

open access: yesFrontiers in Systems Neuroscience, 2014
Psychiatric disorders are often caused by partial heterogeneous disinhibition in cognitive networks, controlling sequential and spatial working memory (SWM).
Mikhail I. Rabinovich   +2 more
doaj   +1 more source

The Heteroclinic Connection Problem for General Double-Well Potentials [PDF]

open access: yesMediterranean Journal of Mathematics, 2016
this version contains some more recent references compared to the published one, Mediterranean Journal of Mathematics (2016)
openaire   +3 more sources

Orbital and escape dynamics in barred galaxies – IV. Heteroclinic connections [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2019
Published in Monthly Notices of the Royal Astronomical Society (MNRAS ...
Zotos, Euaggelos E., Jung, Christof
openaire   +2 more sources

Exploring the Influence of Oblateness on Asymptotic Orbits in the Hill Three-Body Problem

open access: yesAppliedMath
We examine the modified Hill three-body problem by incorporating the oblateness of the primary body and focus on its asymptotic orbits. Specifically, we analyze and characterize homoclinic and heteroclinic connections associated with the collinear ...
Vassilis S. Kalantonis
doaj   +1 more source

Heteroclinic Connection of Periodic Solutions of Delay Differential Equations [PDF]

open access: yesJournal of Dynamics and Differential Equations, 2008
For a certain class of delay equations with piecewise constant nonlinearities we prove the existence of a rapidly oscillating stable periodic solution and a rapidly oscillating unstable periodic solution. Introducing an appropriate Poincaré map, the dynamics of the system may essentially be reduced to a two dimensional map, the periodic solutions being
openaire   +2 more sources

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