|
|||||
|
|
A refinement of Rotfel'd type inequality for partitioned matrices with numerical ranges in a sector |
|
| Authors: | Junjian Yang Zhen Chen |
| Affiliation: | 1. School of Mathematical Sciences, Guizhou Normal University, Guiyang, P.R. China.;2. School of Mathematics and Statistics, Hainan Normal University, Haikou, P.R. China. |
| Abstract: | |
| Keywords: | Concave function numerical range normal matrix unitarily invariant norm |