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Published in 2020 at "Mathematische Nachrichten"
DOI: 10.1002/mana.201800156
Abstract: In this paper we give sufficient conditions that guarantee the mean curvature flow with free boundary on a pinched cylinder develops a Type 2 curvature singularity. We additionally prove that Type 0 singularities may only…
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Keywords:
mean curvature;
free boundary;
type singularities;
curvature flow ... See more keywords
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1
Published in 2020 at "Mathematical Methods in the Applied Sciences"
DOI: 10.1002/mma.6152
Abstract: We consider a two‐phase Stefan problem for a semi‐infinite body x>0, with a convective boundary condition including a density jump at the free boundary with a time‐dependent heat transfer coefficient of the type h/t ,…
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Keywords:
density;
free boundary;
boundary condition;
problem ... See more keywords
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3
Published in 2022 at "Mathematical Methods in the Applied Sciences"
DOI: 10.1002/mma.8087
Abstract: Atherosclerosis occurs when plaque clogs the arteries. It is a leading cause of death in the United States and worldwide. In this paper, we study the bifurcation for a highly nonlinear and highly coupled PDE…
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Keywords:
first bifurcation;
arterial plaque;
free boundary;
bifurcation point ... See more keywords
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1
Published in 2017 at "Numerische Mathematik"
DOI: 10.1007/s00211-016-0847-5
Abstract: We propose a new numerical method for the solution of Bernoulli’s free boundary value problem for a harmonic function w in a doubly connected domain D in $$\mathbb {R}^2$$R2 where an unknown free boundary $$\varGamma…
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Keywords:
value problem;
boundary value;
bernoulli free;
vargamma ... See more keywords
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Published in 2020 at "manuscripta mathematica"
DOI: 10.1007/s00229-020-01260-9
Abstract: We investigate the properties of the Cheeger sets of rotationally invariant, bounded domains $\Omega \subset \mathbb{R}^n$. For a rotationally invariant Cheeger set $C$, the free boundary $\partial C \cap \Omega$ consists of pieces of Delaunay…
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Keywords:
problem rotationally;
cheeger problem;
invariant domains;
rotationally invariant ... See more keywords
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1
Published in 2019 at "Acta Applicandae Mathematicae"
DOI: 10.1007/s10440-019-00271-3
Abstract: In this paper we study the Banach manifold made up of simple C m + μ $C^{m+\mu }$ -domains in the Euclidean space R n $\mathbb{R}^{n}$ . This manifold is merely a topological or a…
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Keywords:
banach manifold;
euclidean space;
simple domains;
free boundary ... See more keywords
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1
Published in 2017 at "Computational Mathematics and Modeling"
DOI: 10.1007/s10598-017-9356-3
Abstract: Numerical methods for modeling the behavior of an industrial aluminum electrolyzer are investigated and developed. Solving a prototype problem that brings out the specific features of aluminum electrolysis, we compare two approaches to investigating the…
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Keywords:
electrolyzer free;
oscillations electrolyzer;
relaxation;
aluminum electrolysis ... See more keywords
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Published in 2018 at "Journal of Dynamical and Control Systems"
DOI: 10.1007/s10883-017-9372-9
Abstract: We consider an inverse problem for an integro-differential parabolic equation with free boundary. This inverse problem aims to identify the memory kernel function from a global measurement data. Based on a fixed point argument, we…
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Keywords:
parabolic equation;
integro differential;
differential parabolic;
memory kernel ... See more keywords
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1
Published in 2021 at "Journal of Dynamics and Differential Equations"
DOI: 10.1007/s10884-021-09986-0
Abstract: We prove the existence of domain walls for the Benard–Rayleigh convection in the case of “rigid–free” boundary conditions. In the recent work (Haragus and Iooss in Arch Ration Mech Anal 239:733–781, 2021), we studied this…
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Keywords:
center manifold;
domain walls;
rayleigh convection;
boundary conditions ... See more keywords
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Published in 2017 at "Journal of Optimization Theory and Applications"
DOI: 10.1007/s10957-016-1037-4
Abstract: In this paper, we study two optimal control problems for a free boundary problem, which models tumor growth with drug application. This free boundary problem is a multicellular tumor spheroid model and includes five time-dependent…
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Keywords:
control;
drug;
boundary problem;
optimal control ... See more keywords
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Published in 2018 at "Ukrainian Mathematical Journal"
DOI: 10.1007/s11253-018-1481-4
Abstract: We consider a problem with free boundary for systems of quasilinear parabolic equations. A part of the boundary conditions is given in the nonlocal form. The a priori estimates of the Hölder norms are established.…
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Keywords:
equations reaction;
systems equations;
problem free;
boundary systems ... See more keywords