| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 4600973 | Linear Algebra and its Applications | 2011 | 5 Pages |
Abstract
We present an example of a pair of 4×4 matrices having identical pseudospectra but whose squares have different norms. The novelty of the example lies in the fact that the matrices in question have only simple eigenvalues.
Related Topics
Physical Sciences and Engineering
Mathematics
Algebra and Number Theory
