期刊
LINEAR ALGEBRA AND ITS APPLICATIONS
卷 432, 期 4, 页码 936-948出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.laa.2009.10.006
关键词
M-matrix; Nonnegative matrices; Fan product; Hadamard product; Spectral radius
资金
- National Natural Science Foundation of China [10826056]
- Natural Science Foundation of Shanghai [092R1408700]
- Shanghai Science and Technology Committee [062112065]
- Shanghai Priority Academic Discipline Foundation
- ECNU [PHD2009]
A new lower bound on the smallest eigenvalue tau(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 rho(A o 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]. Crown Copyright (C) 2009 Published by Elsevier Inc. All rights reserved.
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