| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 4599324 | Linear Algebra and its Applications | 2015 | 4 Pages |
Abstract
In paper [1], the following property of a square matrix A is claimed: if the matrix DADA is a Q-matrix for every positive diagonal matrix D then A2A2 is a P0+-matrix. We show by an explicit example that this claim is wrong even for the case of 2×22×2 matrices.
Related Topics
Physical Sciences and Engineering
Mathematics
Algebra and Number Theory
Authors
O.Y. Kushel,