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In this article, we study the long time behavior of solutions of a variant of the Boussinesq system in which the equation for the velocity is parabolic while the equation for the temperature is hyperbolic. We prove that the system has a…

数学物理 · 物理学 2015-07-02 Animikh Biswas , Ciprian Foias , Adam Larios

This work presents a new conforming stabilized virtual element method for the generalized Boussinesq equation with temperature-dependent viscosity and thermal conductivity. A gradient-based local projection stabilization method is…

数值分析 · 数学 2025-12-29 Sudheer Mishra , Sundararajan Natarajan , Natarajan E

In this paper, we consider the 1D Navier-Stokes equations for viscous compressible and heat conducting fluids (i.e., the full Navier-Stokes equations). We get a unique global classical solution to the equations with large initial data and…

偏微分方程分析 · 数学 2011-03-09 Huanyao Wen , Changjiang Zhu

For given strongly local Dirichlet forms with possibly degenerate symmetric (sub)-elliptic matrix, we show the existence of weak solutions to the stochastic differential equations (associated with the Dirichlet forms) starting from all…

概率论 · 数学 2018-06-18 Jiyong Shin

We prove the existence of weak solutions to a viscoelastic phase separation problem in two space dimensions. The mathematical model consists of a Cahn-Hilliard-type equation for two-phase flows and the Peterlin-Navier-Stokes equations for…

偏微分方程分析 · 数学 2022-08-31 Aaron Brunk , Maria Lukacova-Medvidova

We address the asymptotic properties for the Boussinesq equations with vanishing thermal diffusivity in a bounded domain with no-slip boundary conditions. We show the dissipation of the $L^2$ norm of the velocity and its gradient,…

偏微分方程分析 · 数学 2021-10-01 Igor Kukavica , David Massatt , Mohammed Ziane

We prove the existence and uniqueness of weak solutions of the three dimensional compressible magnetohydrodynamics (MHD) equations. We first obtain the existence of weak solutions with small $L^2$-norm which may display codimension-one…

偏微分方程分析 · 数学 2020-11-12 Anthony Suen

Regularity and uniqueness of weak solution of the compressible isentropic Navier-Stokes equations is proven for small time in dimension $N=2,3$ under periodic boundary conditions. In this paper, the initial density is not required to have a…

偏微分方程分析 · 数学 2010-01-12 Boris Haspot

In this paper, we consider a two-dimensional non-resistive magnetohydrodynamic model, taking the fluctuation of absolute temperature into account. Combining the method of weak convergence developed by Lions [20], Feireisl et al. [7, 8] from…

偏微分方程分析 · 数学 2020-09-15 Yang Li , Yongzhong Sun

We deal with the global in time weak solutions to the 1D compressible Navier-Stokes system of equations for large discontinuous initial data and nonhomogeneous boundary conditions of three standard types. We prove the Lipschitz-type…

偏微分方程分析 · 数学 2026-02-04 Alexander Zlotnik

We prove that bounded weak solutions of the compressible Euler equations will conserve thermodynamic entropy unless the solution fields have sufficiently low space-time Besov regularity. A quantity measuring kinetic energy cascade will also…

偏微分方程分析 · 数学 2018-04-16 Theodore D. Drivas , Gregory L. Eyink

In this work, we investigate the existence and uniqueness of solutions to the following 2D and 3D convective Brinkman-Forchheimer extended Darcy equations defined on a bounded smooth domain $\Omega\subset\mathbb{R}^d$, $d\in\{2,3\}$,…

偏微分方程分析 · 数学 2026-03-03 Manil T. Mohan

We obtain necessary conditions and sufficient conditions on the existence of solutions to the Cauchy problem for a fractional semilinear heat equation with an inhomogeneous term. We identify the strongest spatial singularity of the…

偏微分方程分析 · 数学 2019-10-29 Kotaro Hisa , Kazuhiro Ishige , Jin Takahashi

We prove the existence on long time scales of the solutions to the Cauchy problem for a version of weakly transverse Boussinesq systems arising in the modeling of surface water waves. This system is much more complicated than the isotropic…

偏微分方程分析 · 数学 2024-10-16 Qi Li , Jean-Claude Saut , Li Xu

We prove the global strong solvability of a quasilinear initial-boundary value problem with fractional time derivative of order less than one. Such problems arise in mathematical physics in the context of anomalous diffusion and the…

偏微分方程分析 · 数学 2011-06-06 Rico Zacher

We give sufficient conditions for global existence of positive mild solutions for the weak coupled system: \begin{eqnarray*} \frac{\partial u_{1}}{\partial t}…

偏微分方程分析 · 数学 2013-10-25 Amanda del Carmen Andrade-González , José Villa-Morales

We consider the decay problem for the generalized improved (or regularized) Boussinesq model with power type nonlinearity, a modification of the originally ill-posed shallow water waves model derived by Boussinesq. This equation has been…

偏微分方程分析 · 数学 2019-04-24 Christopher Maulén , Claudio Muñoz

In this paper we analyze the large-time behavior of weak solutions to polytropic fluid models possibly including quantum and capillary effects. Formal a priori estimates show that the density of solutions to these systems should disperse…

偏微分方程分析 · 数学 2023-12-04 Rémi Carles , Kleber Carrapatoso , Matthieu Hillairet

In this manuscript, we aim to establish global existence of weak solutions with higher regularity to the compressible Navier-Stokes equations under no-slip boundary conditions. Though Lions\cite{L1} and Feireisl\cite{F1} have established…

偏微分方程分析 · 数学 2024-11-05 Xiangdi Huang , Zhouping Xin , Wei Yan

We construct unique regular solutions to the minimal nonlinear system of the 1d thermoelasticity. The obtained solution has a positive temperature. Our approach is based on an estimate, using the Fisher information, which seems completely…

偏微分方程分析 · 数学 2023-08-31 Piotr Michał Bies , Tomasz Cieślak