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We consider the existence of radially symmetric stationary solutions of the compressible viscous and heat-conductive polytropic ideal fluid on the unbounded exterior domain of a sphere where the boundary and far-field conditions are…

Analysis of PDEs · Mathematics 2025-07-08 Itsukoo Hashimoto , Akitaka Matsumura

We show that if a bounded pseudoconvex domain satisfies the solvability of the bounded $\bar{\partial}$ problem, then the ideal of bounded holomorphic functions vanishing at a point in the domain is finitely generated. We also prove a…

Complex Variables · Mathematics 2022-08-04 Timothy G. Clos

Motivated by the stellar wind ejected from the upper atmosphere (Corona) of a star, we explore a boundary problem of the two-species nonlinear relativistic Vlasov-Poisson systems in the 3D half space in the presence of a constant vertical…

Analysis of PDEs · Mathematics 2024-09-04 Jiaxin Jin , Chanwoo Kim

The Nernst-Planck-Navier-Stokes system models electrodiffusion of ions in a fluid. We prove global existence of solutions in bounded domains in three dimensions with either blocking (no-flux) or uniform selective (special Dirichlet)…

Analysis of PDEs · Mathematics 2020-08-25 Peter Constantin , Mihaela Ignatova , Fizay-Noah Lee

In this paper we prove the existence of a solution to a nonlinear Schr{\"o}dinger--Poisson eigenvalue problem in dimension less than $3$. Our proof is based on a global approach to the determination of eigenvalues and eigenfunctions which…

Analysis of PDEs · Mathematics 2015-03-06 Otared Kavian , Stéphane Mischler

The Euler-Maxwell system describes the evolution of a plasma when the collisions are important enough that each species is in a hydrodynamic equilibrium. In this paper we prove global existence of small solutions to this system set in the…

Analysis of PDEs · Mathematics 2011-07-11 Pierre Germain , Nader Masmoudi

We prove asymptotic stability of the Poisson homogeneous equilibrium among solutions of the Vlassov-Poisson system in the Euclidean space $\mathbb{R}^3$. More precisely, we show that small, smooth, and localized perturbations of the Poisson…

Analysis of PDEs · Mathematics 2024-01-30 Alexandru Ionescu , Benoit Pausader , Xuecheng Wang , Klaus Widmayer

We study the existence of stationary solutions of the Vlasov-Poisson system with finite radius and finite mass in the stellar dynamics case. So far, the existence of such solutions is known only under the assumption of spherical symmetry.…

Mathematical Physics · Physics 2007-05-23 Gerhard Rein

A basic question about regularity of Boltzmann solutions in the presence of physical boundary conditions has been open due to characteristic nature of the boundary as well as the non-local mixing of the collision operator. Consider the…

Analysis of PDEs · Mathematics 2017-01-31 Yan Guo , Chanwoo Kim , Daniela Tonon , Ariane Trescases

We consider the plasma confined in a general axisymmetric spatial domain with perfect conducting boundary which reflects particles specularly, and look at a certain class of equilibria, assuming axisymmetry in the problem. We prove a sharp…

Analysis of PDEs · Mathematics 2019-10-15 Katherine Zhiyuan Zhang

We prove global existence of weak solutions to two systems of equations which extend the dynamics of the Navier-Stokes equations for incompressible viscous flow with no-slip boundary condition. The systems of equations we consider arise as…

Analysis of PDEs · Mathematics 2013-08-23 Mihaela Ignatova , Gautam Iyer , James P. Kelliher , Robert L. Pego , Arghir D. Zarnescu

We study the "one and one-half" dimensional Vlasov-Maxwell-Fokker-Planck system and obtain the first results concerning well-posedness of solutions. Specifically, we prove the global-in-time existence and uniqueness in the large of…

Analysis of PDEs · Mathematics 2017-01-31 Stephen Pankavich , Jack Schaeffer

Classical solutions of the spherically symmetric Nordstr\"{o}m-Vlasov system are shown to exist globally in time. The main motivation for investigating the mathematical properties of the Nordstr\"{o}m-Vlasov system is its relation to the…

General Relativity and Quantum Cosmology · Physics 2016-08-16 Håkan Andréasson , Simone Calogero , Gerhard Rein

We consider an ensemble of classical particles coupled to a Klein-Gordon field. For the resulting nonlinear system of partial differential equations, which we call the relativistic Vlasov-Klein-Gordon system, we prove the existence of…

Analysis of PDEs · Mathematics 2009-11-07 Michael Kunzinger , Gerhard Rein , Roland Steinbauer , Gerald Teschl

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

We study the global existence of solutions reaction-diffusion systems with control of mass on multiple domains. Some of these domains overlap, and as a result, an unknown defined on one subdomain can impact another unknown defined on a…

Analysis of PDEs · Mathematics 2022-06-22 William E. Fitzgibbon , Jeff Morgan , Joh Maurice-Car Ryan

We prove the existence of static, spherically symmetric solutions of the stellar dynamic Vlasov-Poisson and Vlasov-Einstein systems, which have the property that their spatial support is a finite, spherically symmetric shell with a vacuum…

Mathematical Physics · Physics 2007-05-23 Gerhard Rein

In this paper, we are concerned with the local and global existence for the stochastic Prandtl equation in two and three dimensions, which governs the velocity field inside the boundary layer that appears in the inviscid limit of the…

Analysis of PDEs · Mathematics 2024-08-09 Ya-Guang Wang , Meng Zhao

As a continuation of our series works on the Boltzmann equation without angular cutoff assumption, in this part, the global existence of solution to the Cauchy problem in the whole space is proved in some suitable weighted Sobolev spaces…

Analysis of PDEs · Mathematics 2010-10-28 Radjesvarane Alexandre , Y. Morimoto , Seiji Ukai , Chao-Jiang Xu , Tong Yang

The Navier-Stokes motions in cylindrical domain with Navier boundary conditions are considered. First the existence of global regular two-dimensional solutions are proved. The solutions are bounded by the same constant for all time.…

Analysis of PDEs · Mathematics 2015-10-15 Wojciech Zajaczkowski