Permutation equivtdence and permutation congnlence are special cases of matrix equivalence and similarity. This paper introduces a new invariant--the Hermite invariant--for testing permutation equivalence, along with a method for computing it and an assessment of its complexity, Under a restricted d
Hermite indices and equivalence relations
✍ Scribed by I Baragaña; V Fernández; I Zaballa
- Publisher
- Elsevier Science
- Year
- 2004
- Tongue
- English
- Weight
- 203 KB
- Volume
- 379
- Category
- Article
- ISSN
- 0024-3795
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✦ Synopsis
The Hermite indices are invariant for the right equivalence of non-singular polynomial matrices and for the similarity of controllable matrix pairs. Nevertheless, they do not form a complete system of invariants.
The aim of this work is to define two equivalence relations, one in the set of non-singular polynomial matrices and the other one in the set of controllable matrix pairs for which the Hermite indices form a complete system of invariants.
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