THE DUAL MIXED METHOD FOR AN UNILATERAL PROBLEM

• 来源期刊: 计算数学（英文版）
• 关键词: Dual Mixed Method Unilateral Problem.
• 年，卷（期）: 2003,（6）
• 页码范围: 733-746
• 页数: 14页
• 语种: 英文

摘要

In this paper, the dual mixed method for an unilateral problems which is the simplified modelling of scalar function for the friction-free contact problem, is considered. The dual mixed problem is introduced, the existence and uniqeness of the solution of the problem are presented, and error bounds O(h4/3) and O(h2/3) are obtained for the dual mixed finite element approximations of Raviart-Thomas elements for k = 0 and k = 1 respectively.