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We consider the parabolic $p$-Laplace equation with $p>2$ in a moving thin domain under a Neumann type boundary condition corresponding to the total mass conservation. When the moving thin domain shrinks to a given closed moving…

偏微分方程分析 · 数学 2026-01-15 Tatsu-Hiko Miura

We show that a certain error estimate for a fully discrete finite element approximation of the solution of the heat equation which is defined in a two-dimensional Euclidean domain carries over to the case of a general linear parabolic…

数值分析 · 数学 2016-04-22 Heiko Kröner

In this work we analyze convergence of solutions for the Laplace operator with Neumann boundary conditions in a two-dimensional highly oscillating domain which degenerates into a segment (thin domains) of the real line. We consider the case…

偏微分方程分析 · 数学 2011-11-23 Marcone Corrêa Pereira , Ricardo Parreira da Silva

We derive localized and global noncompact versions of Hamilton's gradient estimate for positive solutions to the heat equation on Riemannian manifolds with Ricci curvature bounded below. Our estimates are essentially optimal and…

偏微分方程分析 · 数学 2025-07-17 Loth Damagui Chabi , Philippe Souplet

We consider the Ginzburg-Landau heat flow without magnetic effect in a curved thin domain under the Naumann boundary condition. When the curved thin domain shrinks to a given closed hypersurface as the thickness of the thin domain tends to…

偏微分方程分析 · 数学 2024-04-24 Tatsu-Hiko Miura

In this paper, we consider the finite element approximation for a parabolic problem on a smooth domain $\Omega \subset \mathbb{R}^N$ with the inhomogeneous Neumann boundary condition. We emphasize that the domain can be non-convex in…

数值分析 · 数学 2018-07-04 Takahito Kashiwabara , Tomoya Kemmochi

The paper develops an explicit a priori error estimate for finite element solution to nonhomogeneous Neumann problems. For this purpose, the hypercircle equation over finite element spaces is constructed and the explicit upper bound of the…

数值分析 · 数学 2018-05-29 Qin Li , Xuefeng Liu

We consider the Cahn-Hilliard equation with Neumann boundary conditions in a three-dimensional curved thin domain around a given closed surface. When the thickness of the curved thin domain tends to zero, we show that the weighted average…

偏微分方程分析 · 数学 2025-12-16 Tatsu-Hiko Miura

This manuscript deals with the analysis of numerical methods for the full discretization (in time and space) of the linear heat equation with Neumann boundary conditions, and it provides the reader with error estimates that are uniform in…

数值分析 · 数学 2024-02-28 Guillaume Dujardin , Pauline Lafitte

We construct and derive uniform stochastic estimates on the renormalised model for a class of fourth-order conservative quasilinear singular SPDEs in arbitrary dimension $d\geq 1$ and in the full subcritical regime of noise regularity. The…

偏微分方程分析 · 数学 2026-05-19 Rishabh S. Gvalani , Markus Tempelmayr

In this paper, we prove the existence of a classical solution to a Neumann boundary problem for Hessian equations in uniformly convex domain. The methods depend upon the established of a priori derivative estimates up to second order. So we…

偏微分方程分析 · 数学 2024-04-22 Xi-Nan Ma , Guohuan Qiu

We establish a spatial gradient maximum principle for classical solutions to the initial and Neumann boundary value problem of some quasilinear parabolic equations on smooth convex domains.

偏微分方程分析 · 数学 2016-05-17 Seonghak Kim

We prove a Li-Yau gradient estimate for positive solutions to the heat equation, with Neumann boundary conditions, on a compact Riemannian submanifold with boundary ${\bf M}^n\subseteq {\bf N}^n$, satisfying the integral Ricci curvature…

微分几何 · 数学 2018-04-13 Xavier Ramos Olivé

We prove the following sharp upper bound for the gradient of the Neumann semigroup $P_t$ on a $d$-dimensional compact domain $\OO$ with boundary either $C^2$-smooth or convex: $$\|\nn P_t\|_{1\to \infty}\le \ff{c}{t^{(d+1)/2}},\ \ t>0,$$…

概率论 · 数学 2010-09-30 Feng-Yu wang , Lixin Yan

In this paper, by employ the cutoff function and the maximum principle, some Hamilton-Souplet-Zhang type gradient estimates for porous medium type equation are deduced. As a special case, an Hamilton-Souplet-Zhang type gradient estimates of…

微分几何 · 数学 2017-05-26 Wen Wang

This paper deals with a priori pointwise error estimates for the finite element solution of boundary value problems with Neumann boundary conditions in polygonal domains. Due to the corners of the domain, the convergence rate of the…

数值分析 · 数学 2018-05-01 Thomas Apel , Johannes Pfefferer , Sergejs Rogovs , Max Winkler

This paper is devoted to the study of gradient estimates for the Dirichlet problem of the heat equation in the exterior domain of a compact set. Our results describe the time decay rates of the derivatives of solutions to the Dirichlet…

偏微分方程分析 · 数学 2017-10-03 Vladimir Georgiev , Koichi Taniguchi

We consider the stationary Navier-Stokes equations in a three-dimensional curved thin domain around a given closed surface under the slip boundary conditions. Our aim is to show that a solution to the bulk equations is approximated by a…

偏微分方程分析 · 数学 2023-08-25 Tatsu-Hiko Miura

We present a waveform relaxation version of the Dirichlet-Neumann method for parabolic problem. Like the Dirichlet-Neumann method for steady problems, the method is based on a non-overlapping spatial domain decomposition, and the iteration…

偏微分方程分析 · 数学 2015-06-15 Bankim C. Mandal

We prove locally in time the existence of the unique smooth solution (including smooth interface) to the multidimensional free boundary problem for the thin film equation in the case of partial wetting. We also obtain the Schauder estimates…

偏微分方程分析 · 数学 2018-02-09 S. P. Degtyarev
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