New sufficient conditions for subdirect sums of Nekrasov matrices
Some new sufficient conditions ensuring that the $k$-subdirect sum of strictly diagonally dominant matrices and Nekrasov matrices is in the class of Nekrasov matrices are given. These sufficient conditions are different from those in [Electron. J. Linear Algebra, 38:339-346, 2022] and [Linear Multilinear Algebra, 64:208-218, 2016; 72:1044-1055, 2023]. In addition, some examples are given to illustrate the conditions presented.
Authors
- Yaotang Li
- Chaoqian Li (ORCID: https://orcid.org/0000-0003-3754-8734)
- Xue Jiao
Institutions
- Yunnan University (CN)
Publication Details
- Journal
- Electronic Journal of Linear Algebra
- Published
- 2025-04-01
- DOI
- https://doi.org/10.13001/ela.2025.8927
- Citations
- 1
- Primary Topic
- Mathematical Analysis and Transform Methods
- Type
- article
- Field-Weighted Citation Impact
- 3.73