BDM MIXED METHODS FOR A NONLINEAR ELLIPTIC PROBLEM

被引:36
作者
CHEN, ZX [1 ]
机构
[1] UNIV MINNESOTA, ARMY HIGH PERFORMANCE COMP RES CTR, MINNEAPOLIS, MN 55455 USA
关键词
MIXED METHOD; ERROR ESTIMATE; NONLINEAR ELLIPTIC PROBLEM; BDM ELEMENT;
D O I
10.1016/0377-0427(94)90046-9
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
A new mixed formulation is introduced to approximate the solution of a nonlinear elliptic problem based on the Brezzi-Douglas-Marini mixed finite elements. The existence and uniqueness of solutions of the mixed formulation and its discretization are demonstrated. Optimal error estimates in L2(OMEGA), L(infinity)(OMEGA) and H(-s)(OMEGA) are derived. Numerical results are presented to compare the present approach with the standard one and to justify the theoretical results obtained here.
引用
收藏
页码:207 / 223
页数:17
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