Models of curves over DVRs
Fuente:
arXiv
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| Format: | Preprint |
| Published: |
2018
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| _version_ | 1866911366408830976 |
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| author | Dokchitser, Tim |
| author_facet | Dokchitser, Tim |
| contents | Let C be a smooth projective curve over a discretely valued field K, defined by an affine equation f(x,y)=0. We construct a model of C over the ring of integers of K using a toroidal embedding associated to the Newton polygon of f. We show that under 'generic' conditions it is regular with normal crossings, and determine when it is minimal, the global sections of its relative dualising sheaf, and the tame part of the first etale cohomology of C. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_1807_00025 |
| institution | arXiv |
| publishDate | 2018 |
| record_format | arxiv |
| spellingShingle | Models of curves over DVRs Dokchitser, Tim Number Theory Algebraic Geometry Let C be a smooth projective curve over a discretely valued field K, defined by an affine equation f(x,y)=0. We construct a model of C over the ring of integers of K using a toroidal embedding associated to the Newton polygon of f. We show that under 'generic' conditions it is regular with normal crossings, and determine when it is minimal, the global sections of its relative dualising sheaf, and the tame part of the first etale cohomology of C. |
| title | Models of curves over DVRs |
| topic | Number Theory Algebraic Geometry |
| url | https://arxiv.org/abs/1807.00025 |