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The finite element method and approximation theory. (English) Zbl 0239.65085

Numerical Solution partial diff. Equations II, Proc. 2nd Sympos. numerical Solution partial diff. Equations, SYNSPADE 1970, Univ. Maryland, 547-583 (1971).

MSC:

65N30 Finite element, Rayleigh-Ritz and Galerkin methods for boundary value problems involving PDEs
35J35 Variational methods for higher-order elliptic equations
41A25 Rate of convergence, degree of approximation