๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Some new bounds on the spectral radius of matrices

โœ Scribed by Qingbing Liu; Guoliang Chen; Linlin Zhao


Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
180 KB
Volume
432
Category
Article
ISSN
0024-3795

No coin nor oath required. For personal study only.

โœฆ Synopsis


A new lower bound on the smallest eigenvalue ฯ„ (A B) for the Fan product of two nonsingular M-matrices A and B is given. Meanwhile, we also obtain a new upper bound on the spectral radius ฯ(A โ€ข B) for nonnegative matrices A and B. These bounds improve some results of Huang (2008) [R. Huang, Some inequalities for the Hadamard product and the Fan product of matrices, Linear Algebra Appl. 428 (2008) 1551-1559].


๐Ÿ“œ SIMILAR VOLUMES


Inequalities of Rayleigh quotients and b
โœ Don Coppersmith; Alan J. Hoffman; Uriel G. Rothblum ๐Ÿ“‚ Article ๐Ÿ“… 1997 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 844 KB

Given a square, nonnegative, symmetric matrix A, the Rayleigh quotient of a nonnegative vector u under A is given by QA(u)= urAu//uru. We show that QA(~/u o Au ) is not less than QA(u), where ~--denotes coordinatewise square roots and o is the Hadamard product, but that QA(Au) may be smaller than QA

On the spectral radius of (0,1)-matrices
โœ R.A. Brualdi; A.J. Hoffman ๐Ÿ“‚ Article ๐Ÿ“… 1985 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 613 KB