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Geophysicists have studied 3D Quasi-Geostrophic systems extensively. These systems describe stratified flows in the atmosphere on a large time scale and are widely used for forecasting atmospheric circulation. They couple an inviscid…

Analysis of PDEs · Mathematics 2023-02-14 Yiran Hu

We revisit a model for three-dimensional, inviscid quasi-geostrophic flow on bounded, cylindrical domains introduced by the authors in \cite{nv18}. We prove the local-in-time existence of classical solutions.

Analysis of PDEs · Mathematics 2020-02-19 Matthew Novack , Alexis Vasseur

We are concerned with the global existence of classical solutions to the barotropic compressible Navier-Stokes equations with slip boundary condition in a three-dimensional (3D) exterior domain. We demonstrate that the classical solutions…

Analysis of PDEs · Mathematics 2021-12-13 Guocai Cai , Jing Li , Boqiang Lü

This is a remark that by using an adaptation of the technique invented by A. Kiselev, F. Nazarov, and A. Voldberg, with a modified scaling argument, we can prove global regularity of the critical 2-D dissipative quasi-geostrophic equation…

Analysis of PDEs · Mathematics 2013-12-31 Sari Ghanem

We consider classical solutions of the inviscid Surface Quasi-geostrophic equation that are a small perturbation $\epsilon$ from a radial stationary solution $\theta=|x|$. We use a modified energy method to prove the existence time of…

Analysis of PDEs · Mathematics 2020-07-10 Ángel Castro , Diego Córdoba , Fan Zheng

In this paper, we study the existence of global classical solutions to the generalized surface quasi-geostrophic equation. By using the variational method, we provide some new families of global classical solutions for to the generalized…

Analysis of PDEs · Mathematics 2021-04-23 Daomin Cao , Guolin Qin , Weicheng Zhan , Changjun Zou

We present a formal derivation of the inviscid 3D quasi-geostrophic system (QG) from primitive equations on a bounded, cylindrical domain. A key point in the derivation is the treatment of the lateral boundary and the resulting boundary…

Analysis of PDEs · Mathematics 2019-09-04 Matthew Novack , Alexis Vasseur

We consider the two-phase flow model with slip boundary condition in a 3D exterior domains whose boundary is smooth. We establish the global existence of classical solutions of this system provided that the initial energy is suitably small.…

Analysis of PDEs · Mathematics 2022-11-16 Zilai Li , Hao Liu , Huaqiao Wang

This paper aims to study time periodic solutions for 3D inviscid quasi-geostrophic model. We show the existence of non trivial rotating patches by suitable perturbation of stationary solutions given by generic revolution shapes around the…

Analysis of PDEs · Mathematics 2021-12-14 Claudia García , Taoufik Hmidi , Joan Mateu

This paper concerns the global existence for classical solutions problem to the 3D Density-Dependent Viscosity barotropic compressible Navier-Stokes in $\Omega$ with slip boundary condition, where $\Omega$ is a simply connected bounded…

Analysis of PDEs · Mathematics 2021-04-22 Yuebo Cao

We consider surface quasi-geostrophic equation with dispersive forcing and critical dissipation. We prove global existence of smooth solutions given sufficiently smooth initial data. This is done using a maximum principle for the solutions…

Analysis of PDEs · Mathematics 2015-05-13 Alexander Kiselev , Fedor Nazarov

In this paper we study the super-critical 2D dissipative quasi-geostrophic equation. We obtain some regularization effects allowing us to prove global well-posedness result for small initial data lying in critical Besov spaces constructed…

Analysis of PDEs · Mathematics 2007-05-23 Taoufik Hmidi , Sahbi Keraani

We prove existence of weak solutions of the 3D compressible semi-geostrophic (SG) equations with compactly supported measure-valued initial data. These equations model large-scale atmospheric flows. Our proof uses a particle discretisation…

Analysis of PDEs · Mathematics 2025-04-30 David P. Bourne , Charlie P. Egan , Théo Lavier , Beatrice Pelloni

We consider a family of singular surface quasi-geostrophic equations $$ \partial_{t}\theta+u\cdot\nabla\theta=-\nu (-\Delta)^{\gamma/2}\theta+(-\Delta)^{\alpha/2}\xi,\qquad u=\nabla^{\perp}(-\Delta)^{-1/2}\theta, $$ on…

Probability · Mathematics 2023-08-29 Martina Hofmanová , Xiaoyutao Luo , Rongchan Zhu , Xiangchan Zhu

In this paper, we investigate the existence of a global classical solution to 3D Cauchy problem of the isentropic compressible Navier-Stokes equations with large initial data and vacuum. Precisely, when the far-field density is vacuum…

Analysis of PDEs · Mathematics 2015-07-07 Xiaofeng Hou , Hongyun Peng , Changjiang Zhu

We prove the global well-posedness of the continuously stratified inviscid quasi-geostrophic equations in $\Bbb R^3$.

Analysis of PDEs · Mathematics 2015-06-23 Dongho Chae

In this article, the authors prove the existence of global weak solutions to the inviscid three-dimensional quasi-geostrophic equation. This equation models the evolution of the temperature on the surface of the earth. It is widely used in…

Analysis of PDEs · Mathematics 2015-09-30 Marjolaine Puel , Alexis F. Vasseur

In this paper, we prove the global regularity of smooth solutions to 2D surface quasi-geostrophic (SQG) equations with super-critical dissipation for a class of large initial data, where the velocity and temperature can be arbitrarily large…

Analysis of PDEs · Mathematics 2021-07-14 Huali Zhang , Jinlu Li

In the recent paper, the global-in-time inviscid limit of the three-dimensional (3D) isentropic compressible Navier-Stokes equations is considered. First, when viscosity coefficients are given as a constant multiple of density's power…

Analysis of PDEs · Mathematics 2019-11-21 Yongcai Geng , Yachun Li , Shengguo Zhu

A classical 3-D thermoviscoelastic system of Kelvin-Voigt type is considered. The existence and uniqueness of a global regular solution is proved without small data assumption. The existence proof is based on the successive approximation…

Analysis of PDEs · Mathematics 2011-12-15 Irena Pawlow , Wojciech M. Zajaczkowski
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