Draisma, Jan (2022). The irreducible control property in matrix groups. Linear algebra and its applications, 634, pp. 15-29. Elsevier 10.1016/j.laa.2021.10.020
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This paper concerns matrix decompositions in which the factors are restricted to lie in a closed subvariety of a matrix group. Such decompositions are of relevance in control theory: given a target matrix in the group, can it be decomposed as a product of elements in the subvarieties, in a given order? And if so, what can be said about the solution set to this problem? Can an irreducible curve of target matrices be lifted to an irreducible curve of factorisations? We show that under certain conditions, for a sufficiently long and complicated such sequence, the solution set is always irreducible, and we show that every connected matrix group has a sequence of one-parameter subgroups that satisfies these conditions, where the sequence has length less than 1.5 times the dimension of the group.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
08 Faculty of Science > Department of Mathematics and Statistics > Institute of Mathematics |
UniBE Contributor: |
Draisma, Jan |
Subjects: |
500 Science > 510 Mathematics |
ISSN: |
0024-3795 |
Publisher: |
Elsevier |
Language: |
English |
Submitter: |
Zarif Ibragimov |
Date Deposited: |
14 Mar 2023 09:29 |
Last Modified: |
14 Mar 2023 23:27 |
Publisher DOI: |
10.1016/j.laa.2021.10.020 |
BORIS DOI: |
10.48350/179978 |
URI: |
https://boris.unibe.ch/id/eprint/179978 |
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