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相关论文: Local Well-posedness for the Kinetic MMT Model

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We establish here the local-in-time well-posedness of strong solutions with large initial data to a system coupling compressible atmospheric dynamics with a refined moisture model introduced in Hittmeir and Klein (Theor. Comput. Fluid Dyn.…

偏微分方程分析 · 数学 2024-08-29 Sabine Doppler , Rupert Klein , Xin Liu , Edriss Titi

Recently a linearized perturbation theory has been formulated for soliton sectors of quantum field theories. While it is more economical than alternative formalisms, such as collective coordinates, it is currently limited to solitons which…

高能物理 - 理论 · 物理学 2022-05-18 Jarah Evslin

Turbulence in rotating Magneto-hydrodynamic systems is studied theoretically and numerically. In the linear limit, when the velocity and magnetic perturbations are small, the system supports two types of waves. When the rotation effects are…

等离子体物理 · 物理学 2020-01-08 Nicholas Bell , Sergey Nazarenko

We study the Kolomogorov two-equation model of turbulence in one space dimension. Two are the main results of the paper. First of all, we establish a local well-posedness theory in Sobolev spaces even in the case of vanishing mean turbulent…

偏微分方程分析 · 数学 2023-10-17 Francesco Fanelli , Rafael Granero-Belinchón

In this paper, we investigate the well-posedness theory for the MHD boundary layer system in two-dimensional space. The boundary layer equations are governed by the Prandtl type equations that are derived from the full incompressible MHD…

偏微分方程分析 · 数学 2017-04-25 Jincheng Gao , Boling Guo , Daiwen Huang

In this paper, we consider the local well-posedness of the Prandtl boundary layer equations that describe the behavior of boundary layer in the small viscosity limit of the compressible isentropic Navier-Stokes equations with non-slip…

偏微分方程分析 · 数学 2014-07-15 Ya-Guang Wang , Feng Xie , Tong Yang

We obtain probabilistic local well-posedness in quasilinear regimes for the Schr\"odinger half-wave equation with a cubic nonlinearity. We need to use a refined ansatz because of the lack of probabilistic smoothing in the Picard's…

偏微分方程分析 · 数学 2022-09-29 Nicolas Camps , Louise Gassot , Slim Ibrahim

We establish a variational framework for nonlinear instabilities in a setting of the ideal magnetohydrodynamic (MHD) equations. We apply a variational method to various kind of smooth steady states which are shown to be nonlinearly unstable…

偏微分方程分析 · 数学 2007-05-23 Hyung Ju Hwang

In this paper, we prove the local well-posedness for the Ideal MHD equations in the Triebel-Lizorkin spaces and obtain blow-up criterion of smooth solutions. Specially, we fill a gap in a step of the proof of the local well-posedness part…

偏微分方程分析 · 数学 2009-12-24 Qionglei Chen , Changxing Miao , Zhifei Zhang

The magnetic-Rayleigh--Taylor (MRT) instability is a ubiquitous phenomenon that occurs in magnetically-driven Z-pinch implosions. It is important to understand this instability since it can decrease the performance of such implosions. In…

等离子体物理 · 物理学 2020-03-18 D. E. Ruiz

In this work, we establish local well-posedness for the Korteweg-de Vries model on a balanced star graph with a structure represented by semi-infinite edges, by considering a boundary condition of $\delta$-type at the {unique} graph-vertex.…

偏微分方程分析 · 数学 2024-02-05 Jaime Angulo Pava , Márcio Cavalcante

We prove the local well-posedness of a basic model for relaxational fluid vesicle dynamics by a contraction mapping argument. Our approach is based on the maximal $L_p$-regularity of the model's linearization.

偏微分方程分析 · 数学 2020-01-14 Matthias Köhne , Daniel Lengeler

We employ a port-Hamiltonian approach to model nonlinear rigid multibody systems subject to both position and velocity constraints. Our formulation accommodates Cartesian and redundant coordinates, respectively, and captures kinematic as…

动力系统 · 数学 2025-04-25 Thomas Berger , René Hochdahl , Timo Reis , Robert Seifried

In this paper, we study the well-posedness properties of a stochastic rotating shallow water system in which the noise is chosen according to the Stochastic Advection by Lie Transport (SALT) theory. The system is perturbed by noise…

偏微分方程分析 · 数学 2021-07-15 Dan Crisan , Oana Lang

This paper studies the nonlinear evolution of magnetic field turbulence in proximity of steady ideal MHD configurations characterized by a small electric current, a small plasma flow, and approximate flux surfaces, a physical setting that…

等离子体物理 · 物理学 2024-09-12 Naoki Sato , Michio Yamada

We consider the Cauchy problem of fifth order dispersive equations on the torus. We assume that the initial data is sufficiently smooth and the nonlinear term is a polynomial depending on $\partial_x^3 u, \partial_x^2 u, \partial_x u$ and…

偏微分方程分析 · 数学 2017-08-01 Kotaro Tsugawa

A Hamiltonian model for the propagation of internal water waves interacting with surface waves, a current and an uneven bottom is examined. Using the so-called Dirichlet-Neumann operators, the water wave system is expressed in the…

流体动力学 · 物理学 2022-11-09 Lili Fan , Ruonan Liu , Hongjun Gao

We study nonlinear matter models compatible with radiative Robinson--Trautman spacetimes and analyze their stability and well-posedness. The results lead us to formulate a conjecture relating the (in)stability and well/ill-posedness to the…

广义相对论与量子宇宙学 · 物理学 2024-01-02 T. Tahamtan , D. Flores-Alfonso , O. Svitek

Local well-posedness is established for a highly nonlocal nonlinear diffusion-adhesion system for bounded initial values with small support. Macroscopic systems of this kind were previously obtained by the authors through upscaling in [32]…

偏微分方程分析 · 数学 2025-05-16 Mabel Lizzy Rajendran , Anna Zhigun

The purpose of this article is to introduce for dispersive partial differential equations with random initial data, the notion of well-posedness (in the Hadamard-probabilistic sense). We restrict the study to one of the simplest examples of…

偏微分方程分析 · 数学 2011-03-14 Nicolas Burq , Nikolay Tzvetkov