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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2026
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2604.22594 |
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| _version_ | 1866913118251122688 |
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| author | Flores, Philippe Flamant, Julien Bihan, Nicolas Le |
| author_facet | Flores, Philippe Flamant, Julien Bihan, Nicolas Le |
| contents | This paper discusses the left and right ranks of quaternion matrices with Hankel structure. While they are in general different for arbitrary quaternion matrices, we show that the left and right ranks of quaternion Hankel matrices are equal. Moreover, we establish the relation between Hankel matrices and the existence of linear recurrence relations with quaternion coefficients and discuss some practical implications for computational methods relying on low-rank properties of quaternion Hankel matrices. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_22594 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | On the rank of quaternion Hankel matrices Flores, Philippe Flamant, Julien Bihan, Nicolas Le Rings and Algebras Signal Processing 15A33, 47B35, 15A03 This paper discusses the left and right ranks of quaternion matrices with Hankel structure. While they are in general different for arbitrary quaternion matrices, we show that the left and right ranks of quaternion Hankel matrices are equal. Moreover, we establish the relation between Hankel matrices and the existence of linear recurrence relations with quaternion coefficients and discuss some practical implications for computational methods relying on low-rank properties of quaternion Hankel matrices. |
| title | On the rank of quaternion Hankel matrices |
| topic | Rings and Algebras Signal Processing 15A33, 47B35, 15A03 |
| url | https://arxiv.org/abs/2604.22594 |