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zbMath0449.49023MaRDI QIDQ3896150

Yuri A. Kuznetsov, S. B. Sorokin

Publication date: 1979

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

zbMATH Keywords

upper and lower bounds Ritz method two-sided approximations estimation of eigenvalues

Mathematics Subject Classification ID

Estimates of eigenvalues in context of PDEs (35P15) Spectrum, resolvent (47A10)

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