Quantisation ideals, canonical parametrisations of the unipotent group and consistent integrable systems
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arXiv
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| Auteurs principaux: | , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866908380340158464 |
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| author | Chirkov, M. A. Mikhailov, A. V. Talalaev, D. V. |
| author_facet | Chirkov, M. A. Mikhailov, A. V. Talalaev, D. V. |
| contents | Using the methods of quantisation ideals, we construct a family of quantisations corresponding to Case alpha in Sergeev's classification of solutions to the tetrahedron equation. This solution describes transformations between special parametrisations of the space of unipotent matrices with noncommutative coefficients. We analyse the classical limit of this family and construct a pencil of compatible Poisson brackets that remain invariant under the re-parametrisation maps (mutations). This decomposition problem is closely related to Lusztig's framework, which makes links with the theory of cluster algebras. Our construction differs from the standard family of Poisson structures in cluster theory; it provides deformations of log-canonical brackets. Additionally, we identify a family of integrable systems defined on the parametrisation charts, compatible with mutations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_20253 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Quantisation ideals, canonical parametrisations of the unipotent group and consistent integrable systems Chirkov, M. A. Mikhailov, A. V. Talalaev, D. V. Exactly Solvable and Integrable Systems Mathematical Physics 81R12, 53D55 Using the methods of quantisation ideals, we construct a family of quantisations corresponding to Case alpha in Sergeev's classification of solutions to the tetrahedron equation. This solution describes transformations between special parametrisations of the space of unipotent matrices with noncommutative coefficients. We analyse the classical limit of this family and construct a pencil of compatible Poisson brackets that remain invariant under the re-parametrisation maps (mutations). This decomposition problem is closely related to Lusztig's framework, which makes links with the theory of cluster algebras. Our construction differs from the standard family of Poisson structures in cluster theory; it provides deformations of log-canonical brackets. Additionally, we identify a family of integrable systems defined on the parametrisation charts, compatible with mutations. |
| title | Quantisation ideals, canonical parametrisations of the unipotent group and consistent integrable systems |
| topic | Exactly Solvable and Integrable Systems Mathematical Physics 81R12, 53D55 |
| url | https://arxiv.org/abs/2505.20253 |