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In this article we study the long-time behaviour of a system of nonlinear Partial Differential Equations (PDEs) modelling the motion of incompressible, isothermal and conducting modified bipolar fluids in presence of magnetic field. We…

偏微分方程分析 · 数学 2015-07-06 Paul Andre Razafimandimby

We survey the theory of attractors of nonlinear Hamiltonian partial differential equations since its appearance in 1990. These are results on global attraction to stationary states, to solitons and to stationary orbits, on adiabatic…

偏微分方程分析 · 数学 2023-01-02 Andrew Comech , Alexander Komech , Elena Kopylova

We consider finite energy solutions for the damped and driven two-dimensional Navier--Stokes equations in the plane and show that the corresponding dynamical system possesses a global attractor. We obtain upper bounds for its fractal…

偏微分方程分析 · 数学 2015-03-12 Alexei Ilyin , Kavita Patni , Sergey Zelik

We investigate the attractor of spin density in relativistic spin hydrodynamics using Zubarev's non-equilibrium statistical operator formalism in the spin probe limit. We derive the (0+1)D Bjorken flow equations and the associated attractor…

高能物理 - 唯象学 · 物理学 2026-05-27 Qi Zhou , Duan She , Ben-Wei Zhang , Enke Wang

The Kuramoto-Sivashinsky PDE on the line with odd and periodic boundary conditions and with parameter $\nu=0.1212$ is considered. We give a computer-assisted proof the existence of symbolic dynamics and countable infinity of periodic orbits…

混沌动力学 · 物理学 2020-10-15 Daniel Wilczak , Piotr Zgliczyński

In this work we consider the non local evolution problem \[ \begin{cases} \partial_t u(x,t)=-u(x,t)+g(\beta K(f\circ u)(x,t)+\beta h), ~x \in\Omega, ~t\in[0,\infty[;\\ u(x,t)=0, ~x\in\mathbb{R}^N\setminus\Omega, ~t\in[0,\infty[;\\…

动力系统 · 数学 2017-05-30 Severino H. da Silva , Antonio R. G. Garcia , Bruna E. P. Lucena

This paper concerns the tempered pullback dynamics of 2D incompressible non-autonomous Navier-Stokes equation with non-homogeneous boundary condition on Lipschitz-like domain. With the presence of a time-dependent external force f(t) which…

偏微分方程分析 · 数学 2018-04-24 Xin-Guang Yang , Yuming Qin , To Fu Ma , Yongjin Lu

A recent large deflection cantilever model is considered. The principal nonlinear effects come through the beam's inextensibility---local arc length preservation---rather than traditional extensible effects attributed to fully restricted…

偏微分方程分析 · 数学 2019-10-16 Maria Deliyianni , Varun Gudibanda , Jason Howell , Justin T. Webster

Aperiodic dynamics which is nonchaotic is realized on Strange Nonchaotic attractors (SNAs). Such attractors are generic in quasiperiodically driven nonlinear systems, and like strange attractors, are geometrically fractal. The largest…

混沌动力学 · 物理学 2015-06-26 Awadhesh Prasad , Surendra Singh Negi , Ramakrishna Ramaswamy

We deepen the existence of a nonlocal Hamiltonian formalism for the El's kinetic equation for soliton gas under the polychromatic reduction for a class of interaction kernels. The nonlocality presented is related to semi-Riemannian metrics…

数学物理 · 物理学 2025-04-07 Pierandrea Vergallo

Simulations of chaotic systems can only produce high-fidelity trajectories if the initial and boundary conditions are well specified. When these conditions are unknown but measurements are available, variational state estimation can…

动力系统 · 数学 2026-05-29 Noah B. Frank , Joshua L. Pughe-Sanford , Samuel J. Grauer

In this paper we obtain a detailed description of the global and cocycle attractors for the skew-product semiflows induced by the mild solutions of a family of scalar linear-dissipative parabolic problems over a minimal and uniquely ergodic…

动力系统 · 数学 2017-12-15 Tomas Caraballo , Jose antonio Lnaga , Rafael Obaya , Ana M. Sanz

A polynomial-in-time growth bound is established for global Sobolev $H^s(\mathbb T)$ solutions to the derivative nonlinear Schr\"odinger equation on the circle with $s>1$. These bounds are derived as a consequence of a nonlinear smoothing…

偏微分方程分析 · 数学 2020-12-21 Bradley Isom , Dionyssios Mantzavinos , Atanas Stefanov

We study the dimension of the attractor and quasi-Bernoulli measures of parametrized families of iterated function systems of non-conformal and non-affine maps. We introduce a transversality condition under which, relying on a weak…

动力系统 · 数学 2024-08-19 Balázs Bárány , Antti Käenmäki

In this paper, we consider the semilinear wave equation involving the nonlinear damping term $g(u_t) $ and nonlinearity $f(u)$. The well-posedness of the weak solution satisfying some additional regularity is achieved under the wider ranges…

偏微分方程分析 · 数学 2025-02-18 Cuncai Liu , Fengjuan Meng , Chang Zhang

We consider the evolution of weak vanishing viscosity solutions to the critically dissipative surface quasi-geostrophic equation. Due to the possible non-uniqueness of solutions, we rephrase the problem as a set-valued dynamical system and…

偏微分方程分析 · 数学 2015-12-29 Michele Coti Zelati , Piotr Kalita

This work investigates a nonlocal sinh-Gordon equation with a singularly perturbed parameter in a ball. Under the Robin boundary condition, the solution asymptotically forms a quite steep boundary layer in a thin annular region, and rapidly…

偏微分方程分析 · 数学 2020-09-16 Chiun-Chang Lee

We first give the solution for the local approximation of a four parameter family of generalized one-dimensional point interactions within the framework of non-relativistic model with three neighboring $\delta$ functions. We also discuss…

量子物理 · 物理学 2007-05-23 T. Shigehara , H. Mizoguchi , T. Mishima , Taksu Cheon

In this article, we study the global dynamics of a discrete two dimensional competition model. We give sufficient conditions on the persistence of one species and the existence of local asymptotically stable interior period-2 orbit for this…

动力系统 · 数学 2011-02-14 Yun Kang , Hal Smith

We establish the effective {\em finite dimensionality} of the dynamics corresponding to a flow-plate interaction PDE model arising in aeroelasticity: a nonlinear panel, in the absence of rotational inertia, immersed in an inviscid potential…

偏微分方程分析 · 数学 2020-06-25 Justin T. Webster