| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 4598560 | Linear Algebra and its Applications | 2016 | 10 Pages |
Abstract
Matrices subordinate to trees are considered. An efficient normality characterization for any such matrix is given, and several consequences (not valid for general normal matrices) of it are established. In addition, the existence (and enumeration) of flat portions on the boundary of the field of values of matrices subordinate to a tree is characterized.
Keywords
Related Topics
Physical Sciences and Engineering
Mathematics
Algebra and Number Theory
Authors
Charles R. Johnson, Ilya M. Spitkovsky, Mirjana Stevanovic, Morrison Turnansky,