| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5776235 | Journal of Computational and Applied Mathematics | 2017 | 7 Pages |
Abstract
In this note we consider the question of equivalence of pseudospectra and structured pseudospectra of block matrices. The structures we study are all so called double structures; that is, the blocks of the given matrix are of the same structure as the block matrix. The approach is based on that of non-block matrices, which are also briefly studied, and the use of distance to singularity. We also list some open problems and conjectures.
Related Topics
Physical Sciences and Engineering
Mathematics
Applied Mathematics
Authors
Richard Ferro, Jani A. Virtanen,