Science in China Series A: Mathematics

, 42:917

Superconvergence for triangular finite elements

  • Chen Chuanmiao 
Article

DOI: 10.1007/BF02880383

Cite this article as:
Chen, C. Sci. China Ser. A-Math. (1999) 42: 917. doi:10.1007/BF02880383

Abstract

Based on two classes of the orthogonal expansions in a triangle, superconvergence of m-degree triangular finite element solution (for evenm) and its average gradient (for oddm) at symmetric points for a second order elliptic problem are studied. There are no other superconvergence points independent of the coefficients of elliptic equation.

Keywords

superconvergencetriangular elementany degree

Copyright information

© Science in China Press 1999

Authors and Affiliations

  • Chen Chuanmiao 
    • 1
  1. 1.Institute of ComputationHunan Normal UniversityChangshaChina