Logo image
一些特殊退化二次橢圓算子的勻質化問題與計算
Thesis

一些特殊退化二次橢圓算子的勻質化問題與計算

沈林弘
Masters, 國立清華大學, 數學系
2014

Abstract

勻質化 退化橢圓方程 漸進行為 數值分析 homogenization degenerate elliptic equation asymptotic behaviour numerical analysis
Abstract Homogenization of some special degenerate second order linear elliptic operators and its numerical computation Lin-Hong Shen, Avisor:Assistant Professor Chia-Chieh Chu Department of Mathematics National Tsing Hua University, Hsin-Chu City,Taiwan In many area, homogenization is an alternative way to find out the asymptotic behaviour of partial differential equation. This arti- cle is about homogenization process of degenerate second order linear elliptic operators. In this article, we give both theoretical and com- putational analysis to the asymptotic behaviour of the solution of the equation. −div(a( x )Duh) = f on Ω, uh |∂Ω= 0 on ∂Ω, when Eh tends to zero, where aij (x) is Y -periodic, nonnegative defi- nite for almost every x in domain Ω and vanishes at some points in Ω. We find out that the homogenization process of degenerate ellip- tic equation in rectangle domain is still available for some particular coefficient functions with its inverse is integrable Key words: homogenization, degenerate elliptic equation, asymp- totic behaviour, numerical analysis

Metrics

1 Record Views

Details

Logo image