Two Simple Residual Boundsfor
نویسنده
چکیده
abstract Let A be Hermitian and let the orthonormal columns of X span an approximate invariant subspace of X. Then the residual R = AX XM (M = X H AX) will be small. The theorems of this paper bound the distance of the spectrum of M from the spectrum of A in terms of appropriate norms of R.
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تاریخ انتشار 1989