Results 31 to 40 of about 1,011,292 (311)

Boundary regularity for the free boundary in the one-phase problem [PDF]

open access: yesNew Developments in the Analysis of Nonlocal Operators, 2017
We consider the Bernoulli one-phase free boundary problem in a domain $\Omega$ and show that the free boundary $F$ is $C^{1,1/2}$ regular in a neighborhood of the fixed boundary $\partial \Omega$.
Héctor A. Chang‐Lara, O. Savin
semanticscholar   +1 more source

Regularity of the free boundary in the one-phase Stefan problem: a recent approach

open access: yesBruno Pini Mathematical Analysis Seminar, 2022
In this note, we discuss about the regularity of the free boundary for the solutions of the one-phase Stefan problem. We start by recalling the classical results achieved by I. Athanasopoulos, L. Caffarelli, and S.
Nicolò Forcillo
doaj   +1 more source

Regularity of the free boundary for the vectorial Bernoulli problem [PDF]

open access: yesAnalysis & PDE, 2018
In this paper we study the regularity of the free boundary for a vector-valued Bernoulli problem, with no sign assumptions on the boundary data. More precisely, given an open, smooth set of finite measure $D\subset \mathbb{R}^d$, $\Lambda>0$ and ...
Dario Mazzoleni   +2 more
semanticscholar   +1 more source

Multidimensional transonic shock waves and free boundary problems

open access: yesBulletin of Mathematical Sciences, 2022
We are concerned with free boundary problems arising from the analysis of multidimensional transonic shock waves for the Euler equations in compressible fluid dynamics.
Gui-Qiang G. Chen, Mikhail Feldman
doaj   +1 more source

A free boundary problem for an attraction–repulsion chemotaxis system

open access: yesBoundary Value Problems, 2018
In this paper we study an attraction–repulsion chemotaxis system with a free boundary in one space dimension. First, under some conditions, we investigate existence, uniqueness and uniform estimates of the global solution.
Weiyi Zhang, Zuhan Liu, Ling Zhou
doaj   +1 more source

Higher Critical Points in an Elliptic Free Boundary Problem

open access: yes, 2018
We study higher critical points of the variational functional associated with a free boundary problem related to plasma confinement. Existence and regularity of minimizers in elliptic free boundary problems have already been studied extensively.
D. Jerison, K. Perera
semanticscholar   +1 more source

On the smoothness of the free boundary in a nonlocal one-dimensional parabolic free boundary value problem

open access: yesOpen Mathematics, 2015
We consider one-dimensional parabolic free boundary value problem with a nonlocal (integro-differential) condition on the free boundary. Results on Cm-smoothness of the free boundary are obtained.
Semerdjieva Rossitza
doaj   +1 more source

On the controllability of a free-boundary problem for the 1D heat equation

open access: yesSystems & control letters (Print), 2016
This paper deals with the local null control of a free-boundary problem for the classical 1D heat equation with distributed controls, locally supported in space.
E. Fernández-Cara   +2 more
semanticscholar   +1 more source

Free boundary value problem for compressible magnetohydrodynamic equations

open access: yesElectronic Journal of Differential Equations, 2020
In this article we consider a free boundary value problem for barotropic compressible magnetohydrodynamic equations with density-dependent viscosity coefficients.
Huihui Kong, Ruxu Lian
doaj  

A free boundary problem for the -Laplacian [PDF]

open access: yesNonlinear Analysis: Theory, Methods & Applications, 2010
We consider the optimization problem of minimizing $\int_Ω|\nabla u|^{p(x)}+ λχ_{\{u>0\}} dx$ in the class of functions $W^{1,p(\cdot)}(Ω)$ with $u-ϕ_0\in W_0^{1,p(\cdot)}(Ω)$, for a given $ϕ_0\geq 0$ and bounded. $W^{1,p(\cdot)}(Ω)$ is the class of weakly differentiable functions with $\int_Ω|\nabla u|^{p(x)} dx0\}$, is a regular surface.
Fernandez Bonder, Julian   +2 more
openaire   +4 more sources

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