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The weak Harnack inequality for $L^p$-viscosity supersolutions of fully nonlinear second-order uniformly parabolic partial differential equations with unbounded coefficients and inhomogeneous terms is proved. It is shown that H\"older…

偏微分方程分析 · 数学 2019-04-02 Shigeaki Koike , Andrzej Swiech , Shota Tateyama

We study in this paper the movement of a rigid solid inside an incompressible Navier-Stokes flow, within a bounded domain. We consider the case where slip is allowed at the fluid/solid interface, through a Navier condition. Taking into…

偏微分方程分析 · 数学 2014-03-06 David Gérard-Varet , Matthieu Hillairet

In \cite{Elek} we proved that the limit of a weakly convergent sequence of finite graphs can be viewed as a graphing or a continuous field of infinite graphs. Thus one can associate a type $II_1$-von Neumann algebra to such graph sequences.…

组合数学 · 数学 2007-05-23 Gábor Elek

In this paper, we consider the energy conservation of the Leray-Hopf weak solution $u$ to the Navier-Stokes equations on bounded domains $\Omega$ with Lipschitz boundary $\partial\Omega$. We prove that although the boundary effect appears,…

偏微分方程分析 · 数学 2022-03-22 Wenke Tan

Employing the approach of A. Takeshita [Pacific J. Math., Vol. 157 (1993), 151--158], we give an elementary proof of the invalidity of the Leray-Hopf Extension Condition for certain multiply connected bounded domains of R^n, n=2,3, whenever…

偏微分方程分析 · 数学 2013-10-11 Giovanni P. Galdi

We study the regularity of weak solutions to evolution equations with distributed order fractional time derivative. We prove a weak Harnack inequality for nonnegative weak supersolutions and H\"older continuity of weak solutions to this…

偏微分方程分析 · 数学 2023-05-25 Adam Kubica , Katarzyna Ryszewska , Rico Zacher

In this note we propose a definition of weak solution for an abstract Cauchy problem in a Hilbert space, and we discuss existence and uniqueness results.

偏微分方程分析 · 数学 2024-06-05 Vittorino Pata , Justin T. Webster

We rigorously prove the convergence of weak solutions to a model for lipid raft formation in cell membranes which was recently proposed by Garcke et al. to weak (varifold) solutions of the corresponding sharp-interface problem for a…

偏微分方程分析 · 数学 2019-02-05 Helmut Abels , Johannes Kampmann

The asymptotic limit of the 2D and 3D Navier-Stokes-Korteweg system for barotropic capillary fluids with density dependent viscosities in the low Mach number and vanishing viscosity regime is established. In the relative energy framework,…

偏微分方程分析 · 数学 2025-07-03 Matteo Caggio , Donatella Donatelli , Lars Eric Hientzsch

In this note, by constructing suitable approximate solutions, we prove the existence of global weak solutions to the compressible Navier-Stokes equations with density-dependent viscosity coefficients in the whole space $\mathbb{R}^N$,…

偏微分方程分析 · 数学 2007-12-28 Ting Zhang , Daoyuan Fang

We investigate sufficient H\"older continuity conditions on Leray-Hopf (weak) solutions to the in unsteady Navier-Stokes equations in three dimensions guaranteeing energy conservation. Our focus is on the half-space case with homogeneous…

偏微分方程分析 · 数学 2024-08-12 Luigi C. Berselli , Alex Kaltenbach , Michael Ružička

We demonstrate the feasibility of a scheme to obtain approximate weak solutions to the (inviscid) Burgers equation in conservation and Hamilton-Jacobi form, treated as degenerate elliptic problems. We show different variants recover…

数值分析 · 数学 2024-06-21 Uditnarayan Kouskiya , Amit Acharya

In this paper, the existence of weak solutions of a convective Cahn-Hilliard equation with degenerate mobility is studied. We first define a notion of weak solutions and establish a regularized problems. The existence of such solutions is…

偏微分方程分析 · 数学 2017-12-11 Xiaopeng Zhao

We present a weak-strong uniqueness result for the inhomogeneous Navier-Stokes (INS) equations in $\mathbb{R}^d$ ($d=2,3$) for bounded initial densities that are far from vacuum. Given a strong solution within the class employed in Paicu,…

偏微分方程分析 · 数学 2024-04-22 Timothée Crin-Barat , Stefan Škondrić , Alessandro Violini

For initial datum of finite kinetic energy, Leray has proven in 1934 that there exists at least one global in time finite energy weak solution of the 3D Navier-Stokes equations. In this paper we prove that weak solutions of the 3D…

偏微分方程分析 · 数学 2018-10-12 Tristan Buckmaster , Vlad Vicol

We study in the inviscid limit the global energy dissipation of Leray solutions of incompressible Navier-Stokes on the torus ${\mathbb T}^d$, assuming that the solutions have norms for Besov space $B^{\sigma,\infty}_3({\mathbb T}^d),$…

偏微分方程分析 · 数学 2019-11-26 Theodore D. Drivas , Gregory L. Eyink

We prove that the sequences generate by the Douglas-Rachford method converge weakly to a solution of the inclusion problem

最优化与控制 · 数学 2010-07-14 B. F. Svaiter

In the vanishing viscosity limit from the Navier-Stokes to Euler equations on domains with boundaries, a main difficulty comes from the mismatch of boundary conditions and, consequently, the possible formation of a boundary layer. Within a…

偏微分方程分析 · 数学 2025-08-05 Christian Seis , Emil Wiedemann , Jakub Woźnicki

In this paper, we demonstrate the existence of positive solutions for certain weakly coupled elliptic systems of sublinear growth under homogeneous Dirichlet boundary conditions. Our findings generalize existing results related to sublinear…

偏微分方程分析 · 数学 2025-08-01 Jean C. Cortissoz

We consider the three dimensional incompressible Navier-Stokes equations with non stationary source terms f chosen in a suitable space. We prove the existence of Leray-Hopf weak solutions and that it is possible to characterize (up to…

偏微分方程分析 · 数学 2020-01-08 Luigi C. Berselli , Roger Lewandowski