On the numerical radius of some -contractions
โ Scribed by M.T. Karaev
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 110 KB
- Volume
- 431
- Category
- Article
- ISSN
- 0024-3795
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
Let M + n be the set of entrywise nonnegative n ร n matrices. Denote by r(A) the spectral radius (Perron root) of A โ M + n . Characterization is obtained for maps f : In particular, it is shown that such a map has the form for some S โ M + n with exactly one positive entry in each row and each co
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 โข B) for nonnegative matrices A and B. These bounds improve some results of Huang (2008) [R. Huang, Some ine