On spectral approximation. Part 1. The problem of convergence. (English) Zbl 0393.65024


65J10 Numerical solutions to equations with linear operators
47A10 Spectrum, resolvent
35P15 Estimates of eigenvalues in context of PDEs
65N25 Numerical methods for eigenvalue problems for boundary value problems involving PDEs


Zbl 0315.35068
Full Text: DOI EuDML


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