Abstract

J. G. Pierce and R. S. Varga, Higher order convergence results for the Rayleigh-Ritz method applied to eigenvalue problems. I. Estimates relating Rayleigh-Ritz and Galerkin approximations to eigenfunctions, SIAM J. Numer. Anal. 9 (1972), 137-151. MR 52, 16065. Zbl. 301.65063.