On Temple--Kato like inequalities and applications (CROSBI ID 757424)
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Podaci o odgovornosti
Grubišić, Luka
engleski
On Temple--Kato like inequalities and applications
The so called Wilkinson's Schur complement trick plays a prominent role in the theory of eigenvalue estimates for finite matrices. We apply this technique to the problem of obtaining Ritz value spectral estimates for a positive definite self- adjoint operator in a Hilbert space. New estimates have a form of a Temple--Kato like inequality and are particularly suited to a situation in which we are estimating a multiple eigenvalue of a positive definite operator by a cluster of Ritz values. An application of new estimates in a context of finite element computations will be discussed.
Estimation of eigenvalues; upper and lower bounds; Variational methods for eigenvalues of operators
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Podaci o izdanju
arxiv.org
2007.
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