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We set up and study a coupled problem on stationary non-isothermal flow of electrorheological fluids. The problem consist in finding functions of velocity, pressure and temperature which satisfy the motion equations, the condition of…

Mathematical Physics · Physics 2007-05-23 R. H. W. Hoppe , W. G. Litvinov

We consider a parabolic PDE with Dirichlet boundary condition and monotone operator $A$ with non-standard growth controlled by an $N$-function depending on time and spatial variable. We do not assume continuity in time for the $N$-function.…

Analysis of PDEs · Mathematics 2021-05-25 Miroslav Bulíček , Piotr Gwiazda , Jakub Skrzeczkowski

In this paper we consider a system coupling a wave equation with a heat equation through its boundary conditions. The existence of a small parameter in the heat equation, as a factor multiplying the time derivative, implies the existence of…

Analysis of PDEs · Mathematics 2023-06-06 Gonzalo Arias , Eduardo Cerpa , Swann Marx

We study the far-from-equilibrium dynamics of a (2+1)-dimensional superfluid at finite temperature and chemical potential using its holographic description in terms of a gravitational system in 3+1 dimensions. Starting from various initial…

High Energy Physics - Theory · Physics 2015-06-11 Carlo Ewerz , Thomas Gasenzer , Markus Karl , Andreas Samberg

We prove the existence of density for the solution to the multiplicative semilinear stochastic heat equation on an unbounded spatial domain, with drift term satisfying a half-Lipschitz type condition. The methodology is based on a careful…

Probability · Mathematics 2023-02-22 Michael Salins , Samy Tindel

In this paper, we consider the problem of nonlinear (in particular, saturated) stabilization of the high-dimensional wave equation with Dirichlet boundary conditions. The wave dynamics are subject to a dissipative nonlinear velocity…

Analysis of PDEs · Mathematics 2022-08-30 Nicolas Vanspranghe , Francesco Ferrante , Christophe Prieur

By using the analytic tools of Dirichlet forms, we initiate a study of some non-linear parabolic equations on Sierpinski gasket, motivated by modellings of fluid flows along a fractal (which can be considered as a simplified rough porous…

Classical Analysis and ODEs · Mathematics 2024-10-10 Xuan Liu , Zhongmin Qian

We study a nonlinear evolutionary partial differential equation that can be viewed as a generalization of the heat equation where the temperature gradient is a~priori bounded but the heat flux provides merely \mbox{$L^1$-coercivity}.…

Analysis of PDEs · Mathematics 2021-03-01 Miroslav Bulíček , David Hruška , Josef Málek

We develop a new variational formulation of the inverse Stefan problem, where information on the heat flux on the fixed boundary is missing and must be found along with the temperature and free boundary. We employ optimal control framework,…

Analysis of PDEs · Mathematics 2016-11-01 Ugur G. Abdulla

We consider a system of stochastic partial differential equations modeling heat conduction in a non-linear medium. We show global existence of solutions for the system in Sobolev spaces of low regularity, including spaces with norm beneath…

Mathematical Physics · Physics 2007-05-23 Luc Rey-Bellet , Lawrence E. Thomas

For a system that is governed by the isothermal Euler equations with friction for ideal gas, the corresponding field of characteristic curves is determined by the velocity of the flow. This velocity is determined by a second-order…

Optimization and Control · Mathematics 2016-08-09 Martin Gugat , Günter Leugering , Ke Wang

We analyze a linear parabolic equation with homogeneous Dirichlet boundary conditions posed in domains whose evolution may involve topological transitions. The domains are described as sublevel sets of a smooth space-time level set…

Analysis of PDEs · Mathematics 2026-03-06 Maxim Olshanskii , Arnold Reusken

We study the local regularity of $p$-caloric functions or more generally of $\phi$-caloric functions. In particular, we study local solutions of non-linear parabolic systems with homogeneous right hand side, where the leading terms has…

Analysis of PDEs · Mathematics 2017-10-25 Lars Diening , Toni Scharle , Sebastian Schwarzacher

In this paper, we study the backward problem of determining initial condition for some class of nonlinear parabolic equations in multidimensional domain where data are given under random noise. This problem is ill-posed, i.e., the solution…

Analysis of PDEs · Mathematics 2017-02-08 Mokhtar Kirane , Erkan Nane , Nguyen Huy Tuan

This article deals with the issues of global-in-time existence and asymptotic analysis of a fluid-particle interaction model in the so-called bubbling regime. The mixture occupies the physical space $\Omega \subset \mathbb{R}^3$ which may…

Analysis of PDEs · Mathematics 2010-06-16 Jose A. Carrillo , Trygve Karper , Konstantina Trivisa

Using spatial domain techniques developed by the authors and Myunghyun Oh in the context of parabolic conservation laws, we establish under a natural set of spectral stability conditions nonlinear asymptotic stability with decay at Gaussian…

Analysis of PDEs · Mathematics 2015-05-18 Mathew Johnson , Kevin Zumbrun

We consider a non-isothermal modified Cahn--Hilliard equation which was previously analyzed by M. Grasselli et al. Such an equation is characterized by an inertial term and a viscous term and it is coupled with a hyperbolic heat equation.…

Analysis of PDEs · Mathematics 2013-10-04 Cecilia Cavaterra , Maurizio Grasselli , Hao Wu

We introduce a system of equations that models a non-isothermal magnetoviscoelastic fluid. We show that the model is thermodynamically consistent, and that the critical points of the entropy functional with prescribed energy correspond…

Analysis of PDEs · Mathematics 2023-05-24 Hengrong Du , Yuanzhen Shao , Gieri Simonett

We study a problem involving thermosolutal convection in a fluid when the solute concentration is subject to a chemical reaction in which the solubility of the dissolved component is a function of temperature. When the spatial domain is a…

Analysis of PDEs · Mathematics 2021-03-19 Michele Ciarletta , Brian Straughan , Vincenzo Tibullo

Reaction-diffusion equations coupled to ordinary differential equations (ODEs) may exhibit spatially low-regular stationary solutions. This work provides a comprehensive theory of asymptotic stability of bounded, discontinuous or…

Analysis of PDEs · Mathematics 2023-05-18 Chris Kowall , Anna Marciniak-Czochra , Finn Münnich