Results 21 to 30 of about 1,011,292 (311)

Existence of solution of a free boundary problem for reaction-diffusion systems

open access: yesСовременная математика: Фундаментальные направления, 2022
In this paper, we prove the existence of solution of a novel free boundary problem for reaction-diffusion systems describing growth of biological tissues due to cell influx and proliferation.
G. A. Younes   +2 more
doaj   +1 more source

Boundary-value problem with free boundary: zirconium alloy hydrogenation

open access: yesTransactions of the Karelian Research Centre of the Russian Academy of Sciences, 2016
One of the most important requirements for the reactor’s active zone materials (made of zirconium alloys) is low hydrogen absorptivity since hydrogen embrittlement may cause zirconium cladding damage.
Yury Zaika, Natalia Rodchenkova
doaj   +1 more source

Well-posedness of the free boundary problem in compressible elastodynamics [PDF]

open access: yes, 2017
We study the free boundary problem for the flow of a compressible isentropic inviscid elastic fluid. At the free boundary moving with the velocity of the fluid particles the columns of the deformation gradient are tangent to the boundary and the pressure
Y. Trakhinin
semanticscholar   +1 more source

Regularity of the free boundary for the two-phase Bernoulli problem [PDF]

open access: yesInventiones Mathematicae, 2019
We prove a regularity theorem for the free boundary of minimizers of the two-phase Bernoulli problem, completing the analysis started by Alt, Caffarelli and Friedman in the 80s.
G. De Philippis   +2 more
semanticscholar   +1 more source

Free boundary problems in biology [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2015
In this paper, I review several free boundary problems that arise in the mathematical modelling of biological processes. The biological topics are quite diverse: cancer, wound healing, biofilms, granulomas and atherosclerosis. For each of these topics, I describe the biological background and the mathematical model, and then proceed to state ...
openaire   +3 more sources

Well-posedness of the free boundary problem in incompressible elastodynamics

open access: yesJournal of Differential Equations, 2019
In this paper, we prove the local well-posedness of the free boundary problem in incompressible elastodynamics under a natural stability condition, which ensures that the evolution equation describing the free boundary is strictly hyperbolic.
Hui Li, Wei Wang, Zhifei Zhang
semanticscholar   +1 more source

Perturbation in a Free Boundary Problem

open access: yesJournal of Mathematical Analysis and Applications, 1994
This paper is concerned with the Dirichlet boundary value problem for a semilinear elliptic partial differential equation with a discontinuous nonlinearity on the unit ball \(B\) in \(\mathbb{R}^2\). Precisely, the authors consider the problem for \(u\) with two positive parameters \(\lambda\) and \(\varepsilon\): \[ - \Delta u= (\lambda+ \varepsilon g(
Boucherif, Abdelkader, Bouguima, Mohamed
openaire   +2 more sources

On Plateau's Problem with Free Boundaries [PDF]

open access: yesProceedings of the National Academy of Sciences, 1945
Not ...
openaire   +2 more sources

Analysis of a free boundary problem modeling the growth of multicell spheroids with angiogenesis

open access: yesJournal of Differential Equations, 2018
In this paper we study a free boundary problem modeling the growth of vascularized tumors. The model is a modification to the Byrne–Chaplain tumor model that has been intensively studied during the past two decades.
Yuehong Zhuang, S. Cui
semanticscholar   +1 more source

A free boundary problem with nonlinear jump and kinetics on the free boundaries [PDF]

open access: yesNonlinear Analysis: Theory, Methods & Applications, 1999
A free boundary problem with nonlinear jump and kinetics on the free boundaries \[ \begin{cases} \Delta u=0\quad & \text{in }\Omega_1(t)=\{(x,y)\in\mathbb{R}^2: g_2(x,t)
openaire   +2 more sources

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