Results 41 to 50 of about 8,908 (255)

The Homoclinic Orbits in the Liénard Plane

open access: yesJournal of Mathematical Analysis and Applications, 1995
In reply to a question, posed by Roberto Conti, concerning the stability properties of the origin to a pseudolinear system in \(\mathbb{R}^ 2\), the situation is clarified for the well-known Liénard system. The notion of the maximal elliptic sector is shown to play an important role with respect to a zero solution to be a positive global (weak ...
openaire   +4 more sources

Homoclinic Orbits around Spinning Black Holes I: Exact Solution for the Kerr Separatrix

open access: yes, 2008
Under the dissipative effects of gravitational radiation, black hole binaries will transition from an inspiral to a plunge. The separatrix between bound and plunging orbits features prominently in the transition.
G. Perez-Giz   +7 more
core   +1 more source

Homoclinic Orbits in Several Classes of Three-Dimensional Piecewise Affine Systems with Two Switching Planes

open access: yesMathematics, 2021
The existence of homoclinic orbits or heteroclinic cycle plays a crucial role in chaos research. This paper investigates the existence of the homoclinic orbits to a saddle-focus equilibrium point in several classes of three-dimensional piecewise affine ...
Yanli Chen, Lei Wang, Xiaosong Yang
doaj   +1 more source

Homoclinic orbits of superlinear Hamiltonian systems [PDF]

open access: yesProceedings of the American Mathematical Society, 2011
In this paper, we consider the first-order Hamiltonian system \[ J u ˙ ( t ) + ∇ H ( t , u ( t ) ) = 0 , t ∈ R .
Guanwei Chen, Shiwang Ma
openaire   +3 more sources

On periodic solutions in the non-dissipative Lorenz model: the role of the nonlinear feedback loop

open access: yesTellus: Series A, Dynamic Meteorology and Oceanography, 2018
In this study, we discuss the role of the linear heating term and nonlinear terms associated with a non-linear feedback loop in the energy cycle of the three-dimensional (X–Y–Z) non-dissipative Lorenz model (3D-NLM), where (X, Y, Z) represent the ...
B.-W. Shen
doaj   +1 more source

Shilnikov Homoclinic Bifurcation of Mixed-Mode Oscillations

open access: yes, 2015
The Koper model is a three-dimensional vector field that was developed to study complex electrochemical oscillations arising in a diffusion process.
Guckenheimer, John, Lizarraga, Ian
core   +1 more source

Bifurcations of Orbit and Inclination Flips Heteroclinic Loop with Nonhyperbolic Equilibria

open access: yesThe Scientific World Journal, 2014
The bifurcations of heteroclinic loop with one nonhyperbolic equilibrium and one hyperbolic saddle are considered, where the nonhyperbolic equilibrium is supposed to undergo a transcritical bifurcation; moreover, the heteroclinic loop has an orbit flip ...
Fengjie Geng, Junfang Zhao
doaj   +1 more source

Existence of homoclinic orbit for second-order nonlinear difference equation

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2010
By using the Mountain Pass Theorem, we establish some existence criteria to guarantee the second-order nonlinear difference equation $\Delta \left[p(t)\Delta u(t-1)\right] +f(t,u(t))=0$ has at least one homoclinic orbit, where $t\in \mathbb{Z},\ u\in ...
Peng Chen, Li Xiao
doaj   +1 more source

Solitary Waves and Homoclinic Orbits [PDF]

open access: yesAnnual Review of Fluid Mechanics, 1995
The notion that fluid motion often organizes itself into coherent structures has increasingly permeated modern fluid dynamics. Such localized objects appear in laminar flows and persist in turbulent states; from the water on windows on rainy days, to the circulations in planetary atmospheres. This review concerns solitary waves in fluids.
openaire   +2 more sources

Action functional as an early warning indicator in the space of probability measures via Schrödinger bridge

open access: yesQuantitative Biology, Volume 13, Issue 3, September 2025.
Abstract Critical transitions and tipping phenomena between two meta‐stable states in stochastic dynamical systems are a scientific issue. In this work, we expand the methodology of identifying the most probable transition pathway between two meta‐stable states with Onsager–Machlup action functional, to investigate the evolutionary transition dynamics ...
Peng Zhang   +3 more
wiley   +1 more source

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