1. A note on the inclusion sets for singular values
- Author
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Jun He, Yan-Min Liu, Jun-Kang Tian, and Ze-Rong Ren
- Subjects
Singular value ,Matrix ,Inclusion sets ,Mathematics ,QA1-939 - Abstract
In this paper, for a given matrix $A=(a_{ij}) \in \mathbb{C}^{n\times n}$, in terms of $r_i$ and $c_i$, where $ r_i = \sum\limits_{j = 1,j \ne i}^n {\left| {a_{ij} } \right|}, \ \ c_i = \sum\limits_{j = 1,j \ne i}^n {\left| {a_{ji} } \right|} $, some new inclusion sets for singular values of a matrix are established. It is proved that the new inclusion sets are tighter than the Geršgorin-type sets [1] and the Brauer-type sets [2]. A numerical experiment show the efficiency of our new results.
- Published
- 2017
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