| Autor: |
Žitňan, Peter |
| Zdroj: |
Numerische Mathematik; 1989, Vol. 54 Issue 6, p639-654, 16p |
| Abstrakt: |
Let A, B be essentially self-adjoint and positive definite differential operators defined in L( G). Using Svirskij's construction of the base operator and some results from the analytic perturbation theory of linear operators a formula providing eigenvalue lower bounds of the problem Au=λBu is derived. In this formula a rough lower bound of some higher eigenvalue and the residual convergence of the Rayleigh-Ritz eigenfunction approximations are needed. Some numerical results are presented. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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