| Autor: |
Bru Rafael, Gassó Maria T., Giménez Isabel, Santana Máximo, Scott José |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Special Matrices, Vol 11, Iss 1, Pp 144-151 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2300-7451 |
| DOI: |
10.1515/spma-2023-0101 |
| Popis: |
Let C(A)=A∘A−T{\mathcal{C}}\left(A)=A\circ {A}^{-T} be the combined matrix of an invertible matrix AA, where ∘\circ means the Hadamard product of matrices. In this work, we study the combined matrix of a nonsingular matrix, which is an HH-matrix whose comparison matrix is singular. In particular, we focus on C(A){\mathcal{C}}\left(A) when AA is diagonally equipotent, and we study whether C(A){\mathcal{C}}\left(A) is an HH-matrix and to which class it belongs. Moreover, we give some properties on the diagonal dominance of these matrices and on their comparison matrices. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
