Estimation of a condition number related to A(2)T,S
نویسندگان
چکیده
منابع مشابه
Estimation of a Condition Number Related to A
In this paper we get estimation of the absolute condition number a Hilbert space operator, which is related with the outer generalized inverse of a given operator.
متن کاملEstimation of a Condition Number Related to the Weighted Drazin Inverse
In this paper we get the formula for the condition number of the W -weighted Drazin inverse solution of a linear system WAWx = b, where A is a bounded linear operator between Hilbert spaces X and Y , W is a bounded linear operator between Hilbert spaces Y and X, x is an unknown vector in the range of (AW ) and b is a vector in the range of (WA). AMS Mathematics Subject Classification (2000): 47...
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The talk will present a reliable Krylov-subspace method for estimating the spectral condition number of a matrix A. The main difficulty in estimating the condition number is the estimation of the smallest singular value min of A. Our method estimates this value by solving a consistent least-squares minimization problem with a known minimizer using a specific Krylov-subspace method called LSQR...
متن کاملCorrection: Condition Number Estimation of Preconditioned Matrices
[This corrects the article DOI: 10.1371/journal.pone.0122331.].
متن کاملCondition Number Estimation of Preconditioned Matrices
The present paper introduces a condition number estimation method for preconditioned matrices. The newly developed method provides reasonable results, while the conventional method which is based on the Lanczos connection gives meaningless results. The Lanczos connection based method provides the condition numbers of coefficient matrices of systems of linear equations with information obtained ...
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ژورنال
عنوان ژورنال: Filomat
سال: 2011
ISSN: 0354-5180,2406-0933
DOI: 10.2298/fil1103125m