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This paper is aimed to establish well-posedness in several settings for the Cauchy problem associated to a model arising in the study of capillary-gravity flows. More precisely, we determinate local well-posedness conclusions in classical…

偏微分方程分析 · 数学 2020-05-21 Oscar Riaño

We consider the Cauchy problem associated to the recently derived higher order hamiltonian model for unidirectional water waves and prove global existence for given data in the Sobolev space $H^s$, $s\geq 1$. We also prove an ill-posedness…

偏微分方程分析 · 数学 2019-06-27 Mahendra Panthee , Xavier Carvajal

This paper is concerned with the Cauchy problem of the quadratic nonlinear Schr\"{o}dinger equation in $\mathbb{R} \times \mathbb{R}^2$ with the nonlinearity $\eta |u|^2$ where $\eta \in \mathbb{C} \setminus \{0\}$ and low regularity…

偏微分方程分析 · 数学 2022-09-27 Hiroyuki Hirayama , Shinya Kinoshita , Mamoru Okamoto

We study a two fluid system which models the motion of a charged fluid with Rayleigh friction, and in the presence of an electro-magnetic field satisfying Maxwell's equations. We study the well-posdness of the system in both space…

偏微分方程分析 · 数学 2017-05-15 Yoshikazu Giga , Slim Ibrahim , Shengyi Shen , Tsuyoshi Yoneda

This paper is dedicated to the study of a one-dimensional congestion model, consisting of two different phases. In the congested phase, the pressure is free and the dynamics is incompressible, whereas in the non-congested phase, the fluid…

偏微分方程分析 · 数学 2021-11-09 Anne-Laure Dalibard , Charlotte Perrin

We investigate the Cauchy problem and the diffusion asymptotics for a spatially inhomogeneous kinetic model associated to a nonlinear Fokker-Planck operator. We derive the global well-posedness result with instantaneous smoothness effect,…

偏微分方程分析 · 数学 2024-03-13 Francesca Anceschi , Yuzhe Zhu

This paper is concerned with the Cauchy problem of the one-dimensional free surface equation of shallow water wave, we obtain local well-posedness of the free surface equation of shallow water wave in Sobolev spaces. In addition, we also…

偏微分方程分析 · 数学 2019-01-08 Miaomiao Dang , Zhouyu Li

The present paper deals with the Cauchy problem of a multi-dimensional non-conservative viscous compressible two-fluid system. We first study the well-posedness of the model in spaces with critical regularity indices with respect to the…

偏微分方程分析 · 数学 2020-10-20 Fuyi Xu , Meiling Chi , Lishan Liu , Yonghong Wu

We study the Cauchy problem of the compressible Euler system with strongly singular velocity alignment. We establish a global well-posedness theory for the system with small smooth initial data. Additionally, we derive asymptotic emergent…

偏微分方程分析 · 数学 2024-02-13 Xiang Bai , Changhui Tan , Liutang Xue

We prove that the Cauchy problem is well-posed in a strong sense and in a general setting. Our main result is the construction of an abstract semi-flow for the Hele-Shaw problem within general fluid domains (enabling, for instance, changes…

偏微分方程分析 · 数学 2025-09-10 Thomas Alazard , Herbert Koch

The two-phase horizontally periodic quasistationary Stokes flow in $\mathbb{R}^2$, describing the motion of two immiscible fluids with equal viscosities that are separated by a sharp interface, which is parameterized as the graph of a…

偏微分方程分析 · 数学 2024-06-12 Daniel Böhme , Bogdan-Vasile Matioc

The Cauchy problem for the Kadomtsev-Petviashvili-II equation (u_t+u_{xxx}+uu_x)_x+u_{yy}=0 is considered. A small data global well-posedness and scattering result in the scale invariant, non-isotropic, homogeneous Sobolev space \dot…

偏微分方程分析 · 数学 2010-11-03 Martin Hadac , Sebastian Herr , Herbert Koch

We consider the Cauchy problem associated with the modified Zakharov-Kuznetsov equation over $\mathbb{R}^2$. Taking into consideration the associated dispersive effects, we introduce, for $s,a\ge 0$, a two-parameter space…

偏微分方程分析 · 数学 2025-08-01 Simão Correia , Shinya Kinoshita

In this paper we derive consistent shallow water equations for thin films of power law fluids down an incline. These models account for the streamwise diffusion of momentum which is important to describe accurately the full dynamic of the…

流体动力学 · 物理学 2015-06-12 Pascal Noble , Jean Paul Vila

In this paper we apply the approach of formal asymptotic expansions and perturbation theory to derive a new highly nonlinear shallow-water model from the full governing equations for two dimensional incompressible fluid with constant…

偏微分方程分析 · 数学 2024-01-17 Yu Liu , Xingxing Liu , Min Li

This paper is devoted to the analysis of the incompressible Euler equation in a time-dependent fluid domain, whose interface evolution is governed by the law of linear elasticity. Our main result asserts that the Cauchy problem is globally…

偏微分方程分析 · 数学 2025-04-02 Thomas Alazard , Chengyang Shao , Haocheng Yang

We consider the long time well-posedness of the Cauchy problem with large Sobolev data for a class of nonlinear Schr\"odinger equations (NLS) on $\mathbb{R}^2$ with power nonlinearities of arbitrary odd degree. Specifically, the method in…

偏微分方程分析 · 数学 2016-05-12 Nathan Totz

In this paper we analyse the well-posedness of the Cauchy problem for a rather general class of hyperbolic systems with space-time dependent coefficients and with multiple characteristics of variable multiplicity. First, we establish a…

偏微分方程分析 · 数学 2018-12-27 Claudia Garetto , Christian Jäh , Michael Ruzhansky

In this paper, we present an analytical study, in the one space dimensional case, of the fluid dynamics system proposed in [4] to model the formation of biofilms. After showing the hyperbolicity of the system, we show that, in a open…

偏微分方程分析 · 数学 2015-06-05 Roberta Bianchini , Roberto Natalini

We consider the Cauchy problem for the kinetic derivative nonlinear Schr\"odinger equation on the torus: \[ \partial_t u - i \partial_x^2 u = \alpha \partial_x \big( |u|^2 u \big) + \beta \partial_x \big[ H \big( |u|^2 \big) u \big] , \quad…

偏微分方程分析 · 数学 2021-12-16 Nobu Kishimoto , Yoshio Tsutsumi
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