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This article studies the global well-posedness for a class of defocusing, generalized sixth-order Boussinesq equations, extending a previous result obtained by Wang and Esfahani for the case when the nonlinear term is cubic.

Analysis of PDEs · Mathematics 2019-07-09 Dan-Andrei Geba , Evan Witz

We study the three-dimensional Boussinesq system in bounded rough domains, including bounded Lipschitz and $\mathrm{C}^{1,\alpha}$ domains, within a critical functional framework. We establish existence and uniqueness results that are…

Analysis of PDEs · Mathematics 2026-04-02 Anatole Gaudin

We prove local and global well-posedness in $H^{s,0}(\mathbb{R}^{2})$, $s > -1/2$, for the Cauchy problem associated with the Kadomotsev-Petviashvili-Burgers-I equation (KPBI) by working in Bourgain's type spaces. This result is almost…

Analysis of PDEs · Mathematics 2012-06-08 Mohamad Darwich

We provide a complete local well-posedness theory in $H^s$ based Sobolev spaces for the free boundary incompressible Euler equations with zero surface tension on a connected fluid domain. Our well-posedness theory includes: (i) Local…

Analysis of PDEs · Mathematics 2025-03-27 Mihaela Ifrim , Ben Pineau , Daniel Tataru , Mitchell A. Taylor

We regard the Cauchy problem for a particular Whitham-Boussinesq system modelling surface waves of an inviscid incompressible fluid layer. The system can be seen as a weak nonlocal dispersive perturbation of the shallow water system. The…

Analysis of PDEs · Mathematics 2020-06-24 Evgueni Dinvay

We consider the Vlasov--Poisson equation on $\mathbb{R}^n \times \mathbb{R}^n$ with $n \ge 3$. We prove local well-posedness in $H^{s}(\mathbb{R}^n \times \mathbb{R}^n)$ with $s> n/2-1/4$, for initial distribution $f_{0} \in…

Analysis of PDEs · Mathematics 2025-10-03 In-Jee Jeong , Sangwook Tae

We prove that free boundary incompressible Euler equations are locally well posed in a class of solutions in which the interfaces can exhibit corners and cusps. Contrary to what happens in all the previously known non-$C^1$ water waves, the…

Analysis of PDEs · Mathematics 2023-09-06 Diego Córdoba , Alberto Enciso , Nastasia Grubic

We study the Cauchy problem for the dissipative Benjamin-Ono equations $u_t+\H u_{xx}+|D|^\alpha u+uu_x=0$ with $0\leq\alpha\leq 2$. When $0\leq\alpha< 1$, we show the ill-posedness in $H^s(\R)$, $s\in\R$, in the sense that the flow map…

Analysis of PDEs · Mathematics 2008-02-08 Stéphane Vento

In this paper we establish local-in-time existence and uniqueness of strong solutions in $H^s$ for $s > \frac{n}{2}$ to the viscous, zero thermal-diffusive Boussinesq equations in $\mathbb{R}^n , n = 2,3$. Beale-Kato-Majda type blow-up…

Analysis of PDEs · Mathematics 2017-06-19 Utpal Manna , Akash A. Panda

This paper is concerned with the Cauchy problem of the modified Zakharov-Kuznetsov equation on $\mathbb{R}^d$. If $d=2$, we prove the sharp estimate which implies local in time well-posedness in the Sobolev space $H^s(\mathbb{R}^2)$ for $s…

Analysis of PDEs · Mathematics 2019-12-02 Shinya Kinoshita

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…

Analysis of PDEs · Mathematics 2014-07-15 Ya-Guang Wang , Feng Xie , Tong Yang

We prove the local well-posedness for the two-dimensional Zakharov-Kuznetsov equation in $H^s(\mathbb{R}^2)$, for $s\in [1,2]$, on the background of an $L^\infty(\mathbb{R}^3)$-function $\Psi(t,x,y)$, with $\Psi(t,x,y)$ satisfying some…

Analysis of PDEs · Mathematics 2022-06-17 José Manuel Palacios

We study the well-posedness of the Hele-Shaw-Cahn-Hilliard system modeling binary fluid flow in porous media with arbitrary viscosity contrast but matched density between the components. For initial data in $H^s, s>\frac{d}{2}+1$, the…

Analysis of PDEs · Mathematics 2010-12-15 Xiaoming Wang , Zhifei Zhang

We consider the multidimensional Euler-Poisson equations with non-zero heat conduction, which consist of a coupled hyperbolic-parabolic-elliptic system of balance laws. We make a deep analysis on the coupling effects and establish a local…

Analysis of PDEs · Mathematics 2015-03-17 Jiang Xu

We prove the local well-posedness for a two phase problem of magnetohydrodynamics with a sharp interface. The solution is obtained in the maximal regularity space: $H^1_p((0, T), L_q) \cap L_p((0, T), H^2_q)$ with $1 < p, q < \infty$ and…

Analysis of PDEs · Mathematics 2020-03-03 Elena Frolova , Yoshihiro Shibata

The aim of this communication is to present a simplified, yet rigorous, deduction of the Boussinesq approximated governing equations for buoyant flows. In order to carry out the core deduction procedure, a simplified version of the manifold…

Fluid Dynamics · Physics 2023-10-10 Antonio Barletta

This paper is devoted to the well-posedness of the inhomogeneous nonlinear wave equations. By combining Strichartz estimates with the contraction mapping principle, we establish local and global well-posedness in the function spaces…

Analysis of PDEs · Mathematics 2026-04-07 Jiang Boyu Shen Jiawei , Li Kexue

We regard the Cauchy problem for a particular Whitham-Boussinesq system modelling surface waves of an inviscid incompressible fluid layer. We are interested in well-posedness at a very low level of regularity. We derive dispersive and…

Analysis of PDEs · Mathematics 2019-12-17 Evgueni Dinvay , Sigmund Selberg , Achenef Tesfahun

It is shown that asymptotically consistent modifications of (Boussinesq-like) shallow water approximations, in order to improve their dispersive properties, can fail for uneven bottoms (i.e., the dispersion is actually not improved). It is…

Classical Physics · Physics 2021-02-03 Didier Clamond

In this paper, we discuss the nonlinear stability and convergence of a fully discrete Fourier pseudospectral method coupled with a specially designed second order time-stepping for the numerical solution of the "good" Boussinesq equation.…

Numerical Analysis · Mathematics 2014-01-27 Kelong Cheng , Wenqiang Feng , Sigal Gottlieb , Cheng Wang