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We prove the existence of both local and global smooth solutions to the Cauchy problem in the whole space and the periodic problem in the n-dimensional torus for the incompressible viscoelastic system of Oldroyd-B type in the case of near…

偏微分方程分析 · 数学 2009-11-13 Zhen Lei , Chun Liu , Yi Zhou

This paper is devoted to the study of the large time behaviour of viscosity solutions of parabolic equations with Neumann boundary conditions. This work is the sequel of [13] in which a probabilistic method was developped to show that the…

概率论 · 数学 2015-09-18 Ying Hu , Pierre-Yves Madec

In this paper, we consider the existence of global weak solutions to a one dimensional fluid-particles interaction model: inviscid Burgers-Vlasov equations with fluid velocity in $L^\infty$ and particles' probability density in $L^1$. Our…

偏微分方程分析 · 数学 2020-06-09 Huimin Yu , Wentao Cao

Existence, uniqueness, and regularity of time-periodic solutions to the Navier-Stokes equations in the three-dimensional whole-space are investigated. We consider the Navier-Stokes equations with a non-zero drift term corresponding to the…

偏微分方程分析 · 数学 2015-06-17 Mads Kyed

In this paper we consider viscosity solutions of a class of non-homogeneous singular parabolic equations $$\partial_t u-|Du|^\gamma\Delta_p^N u=f,$$ where $-1<\gamma<0$, $1<p<\infty$, and $f$ is a given bounded function. We establish…

偏微分方程分析 · 数学 2019-12-24 Amal Attouchi , Eero Ruosteenoja

We consider the model of viscous compressible multi-fluids with multiple velocities. We review different formulations of the model and the existence results for boundary value problems. We analyze crucial mathematical difficulties which…

偏微分方程分析 · 数学 2017-11-22 Alexander Mamontov , Dmitriy Prokudin

The model \[ \left\{ \begin{array}{l} u_{tt} = \big(\gamma(\Theta) u_{xt}\big)_x + au_{xx} - \big(f(\Theta)\big)_x, \\[1mm] \Theta_t = \Theta_{xx} + \gamma(\Theta) u_{xt}^2 - f(\Theta) u_{xt}, \end{array} \right. \] for thermoviscoelastic…

偏微分方程分析 · 数学 2025-04-30 Michael Winkler

We study the singularity formation mechanisms of the inviscid generalized Surface Quasi-Geostrophic (gSQG) equation on the whole space $\mathbb{R}^2$ and on the upper half-plane $\mathbb{R}^2_+$, allowing infinite energy. In each case, we…

偏微分方程分析 · 数学 2026-03-13 Thomas Y. Hou , Xiang Qin , Yannick Sire , Yantao Wu

The aim of this work is to prove the global-in-time existence of weak solutions for a viscoelastic phase separation model in three space dimensions. To this end we apply the relative energy concept provided by [3]. We consider the case of…

偏微分方程分析 · 数学 2023-01-03 Aaron Brunk

A boundary value problem related to a third- order parabolic equation with a small parameter is analized. This equation models the one-dimensional evolution of many dissipative media as viscoelastic fluids or solids, viscous gases,…

数学物理 · 物理学 2015-06-04 Monica De Angelis , Pasquale Renno

We consider barotropic motions described by the compressible Navier-Stokes equations in a box with periodic boundary conditions. We are looking for density $\varrho$ in the form $\varrho=a+\eta$, where $a$ is a constant and $\eta|_{t=0}$ is…

偏微分方程分析 · 数学 2019-07-23 Wojciech M. Zajaczkowski

In this paper we continue the study of non-diagonalisable hyperbolic systems with variable multiplicity started by the authors in \cite{Garetto2018}. In the case of space dependent coefficients, we prove a representation formula for…

偏微分方程分析 · 数学 2020-01-15 Claudia Garetto , Christian Jäh , Michael Ruzhansky

We study a class of parabolic equations having first order terms with superlinear (and subquadratic) growth. The model problem is the so-called viscous Hamilton-Jacobi equation with superlinear Hamiltonian. We address the problem of having…

偏微分方程分析 · 数学 2025-01-23 Martina Magliocca , Alessio Porretta

Assuming that initial velocity has finite energy and initial vorticity is bounded in the plane, we show that for any finite time interval the unique solutions of the Navier-Stokes equations converge uniformly to the unique solution of the…

偏微分方程分析 · 数学 2009-03-27 Elaine Cozzi

By employing a Carnot parabolic maximum principle, we show existence-uniqueness of viscosity solutions to a class of equations modeled on the parabolic infinite Laplace equation in Carnot groups. We show stability of solutions within the…

偏微分方程分析 · 数学 2015-01-29 Thomas Bieske , Erin Martin

We study the global existence and uniqueness of classical solutions to the three-dimensional compressible isentropic Navier-Stokes equations with vacuum and external potential forces which could be arbitrarily large provided the initial…

偏微分方程分析 · 数学 2011-11-10 Jing Li , Jianwen Zhang , Junning Zhao

In this note, we show the existence of regular solutions to the stationary version of the Navier-Stokes system for compressible fluids with a density dependent viscosity, known as the shallow water equations. For arbitrary large forcing we…

偏微分方程分析 · 数学 2016-07-15 Šimon Axmann , Piotr B. Mucha , Milan Pokorný

In this article, we study the large time behavior of solutions of first-order Hamilton-Jacobi Equations, set in a bounded domain with nonlinear Neumann boundary conditions, including the case of dynamical boundary conditions. We establish…

偏微分方程分析 · 数学 2015-05-30 Guy Barles , Hiroyoshi Mitake , Hitoshi Ishii

A fundamental open problem in the theory of the multidimensional compressible Navier-Stokes equations is whether smooth solutions can develop singularities in finite time. For constant viscosity coefficients, recent remarkable results show…

偏微分方程分析 · 数学 2026-03-25 Gui-Qiang G. Chen , Lihui Liu , Shengguo Zhu

Singular vorticty solutions of the incompressible 3D-Euler equation are constructed which satisfy the BKM criterion (cf. [2]). The construction is done by inviscid limits of vorticity solutions of transformed incompressible Navier Stokes…

偏微分方程分析 · 数学 2016-04-06 Joerg Kampen