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In this paper we study the Cauchy problem for one multidimensional compressible nonlocal model of the dissipative quasi-geostrophic equations. First, we obtain the local existence and uniqueness of the smooth non-negative solution or the…

Analysis of PDEs · Mathematics 2012-02-07 Shu Wang , Li Linrui , Shengtao Chen

We give an elementary proof of the global well-posedness for the critical 2D dissipative quasi-geostrophic equation. The argument is based on a non-local maximum principle involving appropriate moduli of continuity.

Analysis of PDEs · Mathematics 2009-11-11 A. Kiselev , F. Nazarov , A. Volberg

Motivated by transverse stability issues, we address the time evolution under the KP-II flow of perturbations of a solution which does not decay in all directions, for instance the KdV-line soliton. We study two different types of…

Analysis of PDEs · Mathematics 2015-05-20 Luc Molinet , Jean-Claude Saut , Nikolay Tzvetkov

Rayleigh-B\'enard convection is numerically simulated in two- and three-dimensions using a recently developed two-component lattice Boltzmann equation (LBE) method. The density field of the second component, which evolves according to the…

comp-gas · Physics 2016-08-31 Xiaowen Shan

In this paper, we prove global well-posedness and scattering of the Cauchy problem for the elliptic-elliptic Davey-Stewartson system (eeDS) for initial data $u_{0}\in L^{2}(\mathbb{R}^{2})$ in the defocusing case and for $u_{0}\in…

Analysis of PDEs · Mathematics 2018-08-07 Matthew Rosenzweig

The Zakharov-Kuznetsov equation in space dimension $d\geq 3$ is considered. It is proved that the Cauchy problem is locally well-posed in $H^s(\mathbb{R}^d)$ in the full subcritical range $s>(d-4)/2$, which is optimal up to the endpoint. As…

Analysis of PDEs · Mathematics 2023-12-05 Sebastian Herr , Shinya Kinoshita

In this paper we mainly investigate the Cauchy problem of the finite extensible nonlinear elastic (FENE) dumbbell model with dimension $d\geq2$. We first proved the local well-posedness for the FENE model in Besov spaces by using the…

Analysis of PDEs · Mathematics 2014-06-17 Wei Luo , Zhaoyang Yin

We investigate the Cauchy problem for a 2x2-system of weakly coupled semi-linear fractional wave equations with polynomial nonlinearities posed in R+ x RN. Under appropriate conditions on the exponents and the fractional orders of the time…

Analysis of PDEs · Mathematics 2020-10-08 Ahmad Bashir , Mohamed Berbiche , Ahmed Elsaedi , Mokhtar Kirane

This paper studies the Cauchy problem for three-dimensional viscous, compressible, and heat conducting magnetohydrodynamic equations with vacuum as far field density. We prove the global existence and uniqueness of strong solutions provided…

Analysis of PDEs · Mathematics 2021-05-04 Yang Liu , Xin Zhong

This paper solves the global well-posedness and stability problem on a special $2\frac12$-D compressible viscous non-resistive MHD system near a steady-state solution. The steady-state here consists of a positive constant density and a…

Analysis of PDEs · Mathematics 2022-11-11 Boqing Dong , Jiahong Wu , Xiaoping Zhai

We consider the Cauchy problem for the nonlinear Schr\"odinger equations (NLS) with non-algebraic nonlinearities on the Euclidean space. In particular, we study the energy-critical NLS on $\mathbb{R}^d$, $d=5,6$, and energy-critical NLS…

Analysis of PDEs · Mathematics 2017-08-07 Tadahiro Oh , Mamoru Okamoto , Oana Pocovnicu

This note is devoted to the study of the well-posedness of the Cauchy problem for the Landau Hamiltonian wave equation in the plane, with nonzero constant magnetic field. We show the well-posedness in suitably defined Sobolev spaces taking…

Mathematical Physics · Physics 2016-10-12 Michael Ruzhansky , Niyaz Tokmagambetov

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…

Analysis of PDEs · Mathematics 2009-12-24 Qionglei Chen , Changxing Miao , Zhifei Zhang

We have found a multi-scale steady solution of the Boussinesq equations for Rayleigh-B\'enard convection in a three-dimensional periodic domain between horizontal plates with a constant temperature difference by using a homotopy from the…

Fluid Dynamics · Physics 2020-04-16 Shingo Motoki , Genta Kawahara , Masaki Shimizu

In this paper, we study the global well-posedness of classical solution to 2D Cauchy problem of the compressible Navier-Stokes equations with large initial data and vacuum. It is proved that if the shear viscosity $\mu$ is a positive…

Analysis of PDEs · Mathematics 2012-07-26 Quansen Jiu , Yi Wang , Zhouping Xin

In this paper, we mainly study the Cauchy problem of the Euler-Nernst-Planck-Possion ($ENPP$) system. We first establish local well-posedness for the Cauchy problem of the $ENPP$ system in Besov spaces. Then we present a blow-up criterion…

Analysis of PDEs · Mathematics 2014-06-17 Zeng Zhang , Zhaoyang Yin

We investigate a class of scalar conservation laws on manifolds driven by multiplicative Gaussian (Ito) noise. The Cauchy problem defined on a Riemannian manifold is shown to be well-posed. We prove existence of generalized kinetic…

Analysis of PDEs · Mathematics 2019-06-28 Luca Galimberti , Kenneth H. Karlsen

It is well known that the global well-posedness of the Navier-Stokes equations with temperature-dependent coefficients is a challenging problem, especially in multi-dimensional space. In this paper, we study the 3D Navier-Stokes equations…

Analysis of PDEs · Mathematics 2025-12-30 Yachun Li , Peng Lu , Zhaoyang Shang

In this paper, we consider the Cauchy problem of the two-dimensional regularized incompressible magnetohydrodynamics equations. The main objective of this paper is to establish the global regularity of classical solutions of the…

Analysis of PDEs · Mathematics 2019-09-09 Zhuan Ye

In this article we present local well-posedness results in the classical Sobolev space H^s(R) with s > 1/4 for the Cauchy problem of the Gardner equation, overcoming the problem of the loss of the scaling property of this equation. We also…

Analysis of PDEs · Mathematics 2011-10-20 Miguel A. Alejo