Science in China Series A: Mathematics

, Volume 42, Issue 9, pp 917-924

Superconvergence for triangular finite elements

  • Chen Chuanmiao Affiliated withInstitute of Computation, Hunan Normal University

Rent the article at a discount

Rent now

* Final gross prices may vary according to local VAT.

Get Access


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.


superconvergence triangular element any degree