Geodesic
New sufficient conditions in the generalized spectrum approach to deal with spectral pollution
Vestnik rossijskih universitetov. Matematika, Tome 23 (2018) no. 124, pp. 595-604 Cet article a éte moissonné depuis la source Math-Net.Ru

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In this work, we propose new sufficient conditions to solve the spectralpollution problem by using the generalized spectrum method. We give the theoretical foundation of the generalized spectral approach, as well as illustrate its effectivenessby numerical results.
Keywords: generalized spectrum, Schrodinger operator, eigenvalue approximation. 
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A. Khellaf. New sufficient conditions in the generalized spectrum approach to deal with spectral pollution. Vestnik rossijskih universitetov. Matematika, Tome 23 (2018) no. 124, pp. 595-604. http://geodesic.mathdoc.fr/item/VTAMU_2018_23_124_a1/

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