
Five lectures on the algorithmic aspects of approximation theory.- Lectures on optimal recovery.- An introduction to the analysis of the error in the finite element method for second-order elliptic boundary value problems.- Variational theory and approximation of boundary value problems.
BookTopics in Numerical Analysis: Proceedings of the S.E.R.C. Summer School, Lancaster, July 19 - August 21, 1981 (Lecture Notes in Mathematics, 965)