Geodesic
An a posteriori Error Estimation of the Rayleigh-Ritz Eigenvalues.
Numerische Mathematik, Tome 54 (1989) no. 3, pp. 639-654.

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Mots-clés : a posteriori error estimation, essentially selfadjoint and positive definite differential operators, analytic perturbation theory, eigenvalue lower bounds, residual convergence, Rayleigh-Ritz eigenfunction approximations 
@article{NUMA_1989__54_3_133338,
     author = {Peter Zitnan},
     title = {An a posteriori {Error} {Estimation} of the {Rayleigh-Ritz} {Eigenvalues.}},
     journal = {Numerische Mathematik},
     pages = {639--654},
     publisher = {mathdoc},
     volume = {54},
     number = {3},
     year = {1989},
     zbl = {0645.65027},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1989__54_3_133338/}
}
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Peter Zitnan. An a posteriori Error Estimation of the Rayleigh-Ritz Eigenvalues.. Numerische Mathematik, Tome 54 (1989) no. 3, pp. 639-654. http://geodesic.mathdoc.fr/item/NUMA_1989__54_3_133338/