Symmetric subgroup schemes
Fuente:
arXiv
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866912740669390848 |
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| author | Song, Jinfeng |
| author_facet | Song, Jinfeng |
| contents | Chevalley group schemes are group schemes defined over the integers that parametrize connected reductive groups over algebraically closed fields as geometric fibers. In this paper, we construct closed subgroup schemes of Chevalley group schemes that parametrize symmetric subgroups of reductive groups as geometric fibers. Our construction relies crucially on the theory of quantum symmetric pairs and thus naturally admits a quantization. At the quantum level, this leads to the construction of coisotropic quantum right subgroups of the quantized function algebras of reductive groups. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_01398 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Symmetric subgroup schemes Song, Jinfeng Representation Theory Algebraic Geometry Quantum Algebra 20G99, 17B37 Chevalley group schemes are group schemes defined over the integers that parametrize connected reductive groups over algebraically closed fields as geometric fibers. In this paper, we construct closed subgroup schemes of Chevalley group schemes that parametrize symmetric subgroups of reductive groups as geometric fibers. Our construction relies crucially on the theory of quantum symmetric pairs and thus naturally admits a quantization. At the quantum level, this leads to the construction of coisotropic quantum right subgroups of the quantized function algebras of reductive groups. |
| title | Symmetric subgroup schemes |
| topic | Representation Theory Algebraic Geometry Quantum Algebra 20G99, 17B37 |
| url | https://arxiv.org/abs/2512.01398 |