منابع مشابه
Singular values of convex functions of matrices
Let $A_{i},B_{i},X_{i},i=1,dots,m,$ be $n$-by-$n$ matrices such that $sum_{i=1}^{m}leftvert A_{i}rightvert ^{2}$ and $sum_{i=1}^{m}leftvert B_{i}rightvert ^{2}$ are nonzero matrices and each $X_{i}$ is positive semidefinite. It is shown that if $f$ is a nonnegative increasing convex function on $left[ 0,infty right) $ satisfying $fleft( 0right) =0 $, then $$2s_{j}left( fleft( fra...
متن کاملBounds on Real Eigenvalues and Singular Values of Interval Matrices
We study bounds on real eigenvalues of interval matrices, and our aim is to develop fast computable formulae that produce as-sharp-as-possible bounds. We consider two cases: general and symmetric interval matrices. We focus on the latter case, since on one hand such interval matrices have many applications in mechanics and engineering, and on the other many results from classical matrix analysi...
متن کاملA Note on Inclusion Intervals of Matrix Singular Values
The set of all n-by-n complex matrices is denoted by Cn×n. Let A aij ∈ Cn×n. Denote the Hermitian adjoint of matrix A by A∗. Then the singular values of A are the eigenvalues of AA∗ . It is well known that matrix singular values play a very key role in theory and practice. The location of singular values is very important in numerical analysis and many other applied fields. For more review abou...
متن کاملSome bounds for extreme singular values of a complex matrix
Dedicated to Professor H. M. Srivastava on the Occasion of his Seventieth Birth Anniversary
متن کاملA note on variational representation for singular values of matrix
In this note we address the variational property of singular values of matrix and point out that a theorem in [Matrix Computations, John Hopkins University Press, Baltimore, MD, 1989,1993,1996] is incomplete. 2002 Elsevier Science Inc. All rights reserved.
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ژورنال
عنوان ژورنال: Linear Algebra and its Applications
سال: 1991
ISSN: 0024-3795
DOI: 10.1016/0024-3795(91)90358-4