Varifold solutions of a sharp interface limit of a diffuse interface model for tumor growth

被引:14
|
作者
Melchionna, Stefano [1 ]
Rocca, Elisabetta [2 ,3 ]
机构
[1] Univ Vienna, Fac Math, Oskar Morgenstern Pl 1, A-1090 Vienna, Austria
[2] Univ Pavia, Dipartimento Matemat, Via Ferrata 5, I-27100 Pavia, Italy
[3] CNR, IMATI, Via Ferrata 5, I-27100 Pavia, Italy
基金
奥地利科学基金会;
关键词
Free boundary problems; diffuse interface models; sharp interface limit; Cahn-Hilliard equation; Darcy law; tumor growth; CAHN-HILLIARD EQUATION; MIXTURE MODEL;
D O I
10.4171/IFB/393
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We discuss the sharp interface limit of a diffuse interface model for a coupled Cahn-Hilliard-Darcy system that models tumor growth when a certain parameter epsilon > 0, related to the interface thickness, tends to zero. In particular, we prove that weak solutions to the related initial boundary value problem tend to varifold solutions of a corresponding sharp interface model when epsilon goes to zero.
引用
收藏
页码:571 / 590
页数:20
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