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New results are obtained for global regularity and long-time behavior of the solutions to the 2D Boussinesq equations for the flow of an incompressible fluid with positive viscosity and zero diffusivity in a smooth bounded domain. Our first…

Analysis of PDEs · Mathematics 2016-08-24 Ning Ju

We establish long-time existence of smooth solutions to the 2D ideal Boussinesq equations and to the 2D non-homogeneous incompressible Euler equations for initial data consisting of small temperature perturbations, or small density…

Analysis of PDEs · Mathematics 2025-07-25 Hantaek Bae , Milton Lopes Filho , Anna Mazzucato , Helena Nussenzveig Lopes

In 1871, Saint-Venant introduced the renowned shallow water equations. Since then, for the two-dimensional viscous or inviscid shallow water equations, the global existence of smooth solutions with arbitrarily large initial data has…

Analysis of PDEs · Mathematics 2025-12-19 Xiangdi Huang , Weili Meng , Xueyao Zhang

We prove the existence of global renormalized solutions to the Boltzmann equation in bounded domain with incoming boundary condition, with non-cutoff collision kernels. Thus we extend the results of \cite{villani2002noncutoff} for whole…

Analysis of PDEs · Mathematics 2017-03-20 Ning Jiang , Xu Zhang

Motivated by Duan et al.[Global Mild Solutions of the Landau and Non-Cutoff Boltzmann Equations, Comm. Pure Appl. Math., 74(5), 932-1020.], the global existence of mild solutions to the Vlasov-Maxwell-Fokker-Planck system near a global…

Analysis of PDEs · Mathematics 2023-06-08 Yingzhe Fan , Yuanjie Lei

Global smooth solutions to the initial value problem for systems of nonlinear wave equations with multiple propagation speeds will be constructed in the case of small initial data and nonlinearities satisfying the null condition.

Analysis of PDEs · Mathematics 2007-05-23 Thomas C. Sideris , Shu-Yi Tu

The initial boundary value problem for the three-dimensional incompressible flow of liquid crystals is considered in a bounded smooth domain. The existence and uniqueness is established for both the local strong solution with large initial…

Analysis of PDEs · Mathematics 2011-12-25 Xiaoli Li , Dehua Wang

We consider general relativity with cosmological constant minimally coupled to electromagnetic field and assume that four-dimensional space-time manifold is the warped product of two surfaces with Lorentzian and Euclidean signature metrics.…

General Physics · Physics 2019-07-31 D. E. Afanasev , M. O. Katanaev

One of the major problems in the theory of the porous medium equation is the regularity of the solutions and the free boundaries. Here we assume flatness of the solution in space time cylinder and derive smoothness of the interface after a…

Analysis of PDEs · Mathematics 2016-09-29 Clemens Kienzler , Herbert Koch , Juan Luis Vazquez

It is well known that the Euler vortex patch in $\mathbb{R}^{2}$ will remain regular if it is regular enough initially. In bounded domains, the regularity theory for patch solutions is less complete. We study here the Euler vortex patch in…

Analysis of PDEs · Mathematics 2017-08-25 Chao Li

The Cauchy problem for a quasilinear system of hyperbolic equations describing plane one-dimensional relativistic oscillations of electrons in a cold plasma is considered. For some simplified formulation of the problem, a criterion for the…

Mathematical Physics · Physics 2021-01-08 Olga S. Rozanova , Eugeniy V. Chizhonkov

Ericksen and Leslie established a theory to model the flow of nematic liquid crystals. This paper is devoted to the Cauchy Problem of a simplified version of their system, which retains most of the properties of the original one. We…

Mathematical Physics · Physics 2015-03-06 Francesco De Anna

We collect and present in a unified way several results in recent years about the elastic flow of curves and networks, trying to draw the state of the art of the subject. In particular, we give a complete proof of global existence and…

Analysis of PDEs · Mathematics 2023-03-30 Carlo Mantegazza , Alessandra Pluda , Marco Pozzetta

Using a vortex sheet method we prove global existence of a near circular initial bubble in a Hele-Shaw cell with surface tension and generally finite nonzero viscosity ratio between fluids inside and outside the bubble. The circular shape…

Dynamical Systems · Mathematics 2008-10-17 J. Ye , S. Tanveer

In this paper, we provide a much simplified proof of the main result in [Lin and Zhang, Comm. Pure Appl. Math.,67(2014), 531--580] concerning the global existence and uniqueness of smooth solutions to the Cauchy problem for a 3D…

Analysis of PDEs · Mathematics 2015-06-19 Fanghua Lin , Ting Zhang

We study smoothness of generalized solutions of nonlocal elliptic problems in plane bounded domains with piecewise smooth boundary. The case where the support of nonlocal terms can intersect the boundary is considered. We announce…

Analysis of PDEs · Mathematics 2014-04-22 Pavel Gurevich

In this paper, we solve Lions' open problem: {\it the uniqueness of weak solutions for the 2-D inhomogeneous Navier-Stokes equations (INS)}. We first prove the global existence of weak solutions to 2-D (INS) with bounded initial density and…

Analysis of PDEs · Mathematics 2024-07-01 Tiantian Hao , Feng Shao , Dongyi Wei , Zhifei Zhang

This paper proves the existence of small-amplitude global-in-time unique mild solutions to both the Landau equation including the Coulomb potential and the Boltzmann equation without angular cutoff. Since the well-known works (Guo, 2002)…

Analysis of PDEs · Mathematics 2020-09-18 Renjun Duan , Shuangqian Liu , Shota Sakamoto , Robert M. Strain

We consider a nonlinear model equation describing the motion of a vortex filament immersed in an incompressible and inviscid fluid. In the present problem setting, we also take into account the effect of external flow. We prove the unique…

Analysis of PDEs · Mathematics 2018-09-14 Masashi Aiki , Tatsuo Iguchi

In this paper, we consider the evolution of the Vortex Filament equation (VFE): \begin{equation*} \mathbf X_t = \mathbf Xs \wedge \mathbf Xss, \end{equation*} taking $M$-sided regular polygons with nonzero torsion as initial data. Using…

Numerical Analysis · Mathematics 2019-09-04 Francisco de la Hoz , Sandeep Kumar , Luis Vega
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