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Exact conditions for preservation of the partial indices of a perturbed triangular 2 × 2 matrix function
The possible instability of partial indices is one of the important constraints in the creation of approximate methods for the factorization of matrix functions. This paper is devoted to a study of a specific class of triangular matrix functions given on the unit circle with a stable and unstable se...
| Autores principales: | , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
The Royal Society Publishing
2020
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7277130/ https://www.ncbi.nlm.nih.gov/pubmed/32518505 http://dx.doi.org/10.1098/rspa.2020.0099 |