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We prove partial and full boundary regularity for manifold constrained $p(x)$-harmonic maps.

Analysis of PDEs · Mathematics 2020-01-28 Iwona Chlebicka , Cristiana De Filippis , Lukas Koch

We consider the incompressible Navier-Stokes equations in a moving domain whose boundary is prescribed by a function $\eta=\eta(t,y)$ (with $y\in\mathbb R^2$) of low regularity. This is motivated by problems from fluid-structure…

Analysis of PDEs · Mathematics 2023-05-05 Dominic Breit

This is an expository paper on the theory of local regularity for weak solutions to the non-stationary 3D Navier-Stokes equations near the boundary of a domain.

Analysis of PDEs · Mathematics 2019-07-16 Gregory Seregin , Timofey Shilkin

In this paper we first study partial regularity of weak solutions to the initial boundary value problem for the system $-\mbox{div}\left[(I+\mathbf{m}\otimes \mathbf{m})\nabla p\right]=S(x),\ \ \partial_t\mathbf{m}-D^2\Delta…

Analysis of PDEs · Mathematics 2020-05-25 Xiangsheng Xu

We study the weak solutions to the electron-MHD system and obtain a conditional uniqueness result. In addition, we prove conservation of helicity for weak solutions to the electron-MHD system under a geometric condition.

Analysis of PDEs · Mathematics 2019-11-20 Mimi Dai , Jacob Krol , Han Liu

In the present paper, we investigate the regularity and symmetry properties of weak solutions to semilinear elliptic equations which are locally stable.

Analysis of PDEs · Mathematics 2021-02-25 Louis Dupaigne , Alberto Farina

We establish the global existence of a class of weak solutions to the isentropic compressible Navier-Stokes and magnetohydrodynamic (MHD) equations on the whole plane under a suitably small initial energy. The solutions constructed here…

Analysis of PDEs · Mathematics 2026-02-09 Shuai Wang , Xin Zhong

We consider a boundary value problem driven by the fractional p-Laplacian operator with a bounded reaction term. By means of barrier arguments, we prove H\"older regularity up to the boundary for the weak solutions, both in the singular…

Analysis of PDEs · Mathematics 2015-04-07 Antonio Iannizzotto , Sunra Mosconi , Marco Squassina

This paper is concerned with a compressible MHD equations describing the evolution of viscous non-resistive fluids in piecewise regular bounded Lipschitz domains. Under the general inflow-outflow boundary conditions, we prove existence of…

Analysis of PDEs · Mathematics 2025-01-28 Yang Li , Young-Sam Kwon , Yongzhong Sun

We address here the problem of regularity for weak solutions of the 3D Boussinesq equation. By introducing the new notion of partial suitable solutions, which imposes some conditions over the velocity field only, we show a local gain of…

Analysis of PDEs · Mathematics 2023-03-21 Diego Chamorro , Claudiu Mîndrilă

In this paper we investigate regularity properties of weak solutions to a PDE system that arises in the study of biological transport networks. The system consists of a possibly singular elliptic equation for the scalar pressure of the…

Analysis of PDEs · Mathematics 2018-01-03 Jian-Guo Liu , Xiangsheng Xu

In this paper we study on smooth bounded domains the global regularity (up to the boundary) for weak solutions to systems having $p$-structure depending only on the symmetric part of the gradient.

Analysis of PDEs · Mathematics 2019-05-13 Luigi C. Berselli , Michael Ruzicka

The magnetohydrodynamics (MHD) problem is most often studied in a framework where Dirichlet type boundary conditions on the velocity field is imposed. In this Note, we study the (MHD) system with pressure boundary condition, together with…

Analysis of PDEs · Mathematics 2023-01-13 J. Poirier , N. Seloula

In this paper, we study the regularity of several notions of Lipschitz solutions to the minimal surface system with an emphasis on partial regularity results. These include stationary solutions, integral weak solutions, and viscosity…

Analysis of PDEs · Mathematics 2023-06-23 Bryan Dimler

To verify theoretical results it is sometimes important to use a numerical example where the solution has a particular regularity. The paper describes one approach to construct such examples. It is based on the regularity theory for…

Numerical Analysis · Mathematics 2025-03-10 Thomas Apel , Katharina Lorenz , Serge Nicaise

We study the regularity properties of a weak solution to the boundary value problem for the equation $-\Delta \rho +a u=f$ in a bounded domain $\Omega\subset \mathbb{R}^N$, where $\rho=e^{-\mbox{div}\left(|\nabla u|^{p-2}\nabla…

Analysis of PDEs · Mathematics 2022-07-27 Xiangsheng Xu

We show that finite-energy weak solutions to the incompressible Navier--Stokes equations on a three-dimensional bounded smooth domain are regular up to the boundary, provided that the $L^4_tL^4_x$-norm of the solution is smaller than a…

Analysis of PDEs · Mathematics 2026-04-29 Siran Li

We establish a new regularity property for weak solutions of parabolic systems with coefficients depending measurably on time as well as on all spatial variables. Namely, weak solutions are locally H{\"o}lder continuous Lp valued functions…

Analysis of PDEs · Mathematics 2018-09-05 Pascal Auscher , Simon Bortz , Moritz Egert , Olli Saari

We consider the three-dimensional incompressible magnetohydrodynamics (MHD) equations in a bounded domain with small volume and free moving surface boundary. We establish a priori estimate for solutions with minimal regularity assumptions…

Analysis of PDEs · Mathematics 2022-07-05 Chenyun Luo , Junyan Zhang

We establish the pointwise continuity of bounded weak solutions to of a class of scalar parabolic equations and strongly coupled parabolic systems. Our approach to the regularity theory of parabolic scalar equations is quite elementary and…

Analysis of PDEs · Mathematics 2021-08-31 Dung Le