THE GENERALIZED MAXIMUM ANGLE CONDITION FOR THE (Q)1 ISOPARAMETRIC ELEMENT

• 来源期刊: 计算数学（英文版）
• 关键词: Quadrilateral mesh (Q)1 isoparametric element Generalized maximum angle condition
• 年，卷（期）: 2006,（1）
• 页码范围: 1-8
• 页数: 8页
• 语种: 英文

摘要

We consider the quadrilateral (Q)1 isoparametric element and establish an optimal error estimate in H1 norm for the interpolation operator under a weaker mesh condition which admits anisotropic quadrilaterals and allows the quadrilateral to become a regular triangle in the sense of maximum angle condition [5, 11].