Determination of the Babuska-Aziz constar for the linear triangular finite element

Fumio Kikuchi*, Xuefeng Liu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


We explicitly determine the Babuska-Aziz constant, which plays an essential role in the interpolation error estimation of the linear triangular finite element. The equation for determination is the transcendental equation t + tan t = 0, so that the solution can be numerically obtained with desired accuracy and verification. Such highly accurate approximate values for the constant can be widely used for a priori and a posteriori error estimations in adaptive computation and/or numerical verification.

Original languageEnglish
Pages (from-to)75-82
Number of pages8
JournalJapan Journal of Industrial and Applied Mathematics
Issue number1
Publication statusPublished - 2006 Feb


  • Babuska-Aziz constant
  • Interpolation error estimation
  • Linear triangular finite element

ASJC Scopus subject areas

  • General Mathematics
  • Applied Mathematics


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