中文
相关论文

相关论文: Dynamics and bifurcations on the normally hyperbol…

200 篇论文

Chemical reaction rates must increasingly be determined in systems that evolve under the control of external stimuli. In these systems, when a reactant population is induced to cross an energy barrier through forcing from a temporally…

化学物理 · 物理学 2015-05-01 Galen T. Craven , Thomas Bartsch , Rigoberto Hernandez

Nonlinear normal modes are periodic orbits that survive in nonlinear many-body Hamiltonian systems, and their instability is crucial for relaxation dynamics. Here, we study the instability process of the $\pi/3$-mode in the…

统计力学 · 物理学 2025-02-06 Weicheng Fu , Zhen Wang , Yong Zhang , Hong Zhao

When a dynamical system is subject to a periodic perturbation, the averaging method can be applied to obtain an autonomous leading order "guiding system", placing the time dependence at higher orders. Recent research focused on…

动力系统 · 数学 2026-01-22 Pedro C. C. R. Pereira , Mike R. Jeffrey , Douglas D. Novaes

The escape mechanism of orbits in a star cluster rotating around its parent galaxy in a circular orbit is investigated. A three degrees of freedom model is used for describing the dynamical properties of the Hamiltonian system. The…

星系天体物理 · 物理学 2017-02-24 Euaggelos E. Zotos , Christof Jung

In the inclined layer convection system, thermal convection in a Rayleigh--B\'enard cell tilted against gravity, the flow is subject to competing buoyancy and shear forces. For varying inclination angle ($\gamma$) and Rayleigh number…

流体动力学 · 物理学 2026-05-26 Zheng Zheng , Sajjad Azimi , Florian Reetz , Tobias M. Schneider

When the Poincar\'{e} map associated with a periodic orbit of a hybrid dynamical system has constant-rank iterates, we demonstrate the existence of a constant-dimensional invariant subsystem near the orbit which attracts all nearby…

动力系统 · 数学 2016-11-15 Samuel Burden , Shai Revzen , S. Shankar Sastry

We consider a dynamical system undergoing a saddle-node bifurcation with an explicitly time dependent parameter~$p(t)$. The combined dynamics can be considered as a dynamical systems where $p$ is a slowly evolving parameter. Here, we…

混沌动力学 · 物理学 2024-01-19 Elias Enache , Oleksandr Kozak , Nico Wunderling , Jürgen Vollmer

The nonintegrable Hamiltonian dynamics of particles placed in a symmetric, spatially periodic potential and subjected to a periodically varying field is explored. Such systems can exhibit a rich diversity of unusual transport features. In…

混沌动力学 · 物理学 2008-07-10 D. Hennig , L. Schimansky-Geier , P. Hänggi

This article examines the dynamic phase transitions and pattern formations attributed to binary systems modeled by the Cahn-Hilliard equation. In particular, we consider a two-dimensional lattice structure and determine how different…

偏微分方程分析 · 数学 2025-11-25 Jared Grossman , Evan Halloran , Shouhong Wang

We provide general sufficient conditions for branching out of a time-periodic family of solutions from steady-state solutions to the two-dimensional Navier-Stokes equations in the exterior of a cylinder. To this end, we first show that the…

偏微分方程分析 · 数学 2016-05-04 Giovanni P. Galdi

This paper presents a mechanism for the coexistence of hyperbolic and non-hyperbolic dynamics arising in a neighbourhood of a conservative Bykov cycle where trajectories turn in opposite directions near the two saddle-foci. We show that…

动力系统 · 数学 2015-11-30 Mario Bessa , Alexandre Rodrigues

Pendulums are simple mechanical systems that have been studied for centuries and exhibit many aspects of modern dynamical systems theory. In particular, the double pendulum is a prototypical chaotic system that is frequently used to…

动力系统 · 数学 2026-03-03 Kadierdan Kaheman , Jason J. Bramburger , J. Nathan Kutz , Steven L. Brunton

We study bifurcations of vector fields on 2-manifolds with handles in generic one-parameter families unfolding vector fields with a separatrix loop of a hyperbolic saddle. These bifurcations can differ drastically from the analogous…

动力系统 · 数学 2025-06-03 Ivan Shilin

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…

动力系统 · 数学 2021-02-24 L. M. Lerman , K. N. Trifonov

We study bifurcation behavior in periodic perturbations of two-dimensional symmetric systems exhibiting codimension-two bifurcations with a double eigenvalue when the frequencies of the perturbation terms are small. We transform the…

动力系统 · 数学 2023-02-15 Kazuyuki Yagasaki

This work provides a geometric approach to the study of bifurcation and rate induced transitions in a class of non-autonomous systems referred to herein as $\textit{asymptotically slow-fast systems}$, which may be viewed as 'intermediate'…

动力系统 · 数学 2024-04-23 Samuel Jelbart

We uncover a route from low-dimensional to high-dimensional chaos in nonsmooth dynamical systems as a bifurcation parameter is continuously varied. The striking feature is the existence of a finite parameter interval of periodic attractors…

混沌动力学 · 物理学 2018-11-21 Ru-Hai Du , Shi-Xian Qu , Ying-Cheng Lai

We study the effect of external forcing on the saddle-node bifurcation pattern of interval maps. By replacing fixed points of unperturbed maps by invariant graphs, we obtain direct analogues to the classical result both for random forcing…

动力系统 · 数学 2011-05-26 Vasso Anagnostopoulou , Tobias Jäger

Recent progress in the study of dynamical phase transitions has been made with a large-deviation approach to study trajectories of stochastic jumps using a thermodynamic formalism. We study this method applied to an open quantum system…

量子物理 · 物理学 2012-05-31 Sam Genway , Juan P. Garrahan , Igor Lesanovsky , Andrew D. Armour

There is a growing awareness that catastrophic phenomena in biology and medicine can be mathematically represented in terms of saddle-node bifurcations. In particular, the term `tipping', or critical transition has in recent years entered…

定量方法 · 定量生物学 2019-10-29 Jeremiah Li , Felix X. -F. Ye , Hong Qian , Sui Huang