Affineness of the maximal étale locus
Fuente:
arXiv
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| Auteur principal: | |
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| Format: | Preprint |
| Publié: |
2026
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| _version_ | 1866915872168214528 |
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| author | Zelich, Ivan |
| author_facet | Zelich, Ivan |
| contents | In this paper we will prove a strong version of the celebrated purity of the ramification locus theorem in algebraic geometry. Our key input is a Tor-independence result for global sections of étale schemes over excellent regular local rings, which we will prove by tilting to perfect rings. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_17760 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Affineness of the maximal étale locus Zelich, Ivan Algebraic Geometry In this paper we will prove a strong version of the celebrated purity of the ramification locus theorem in algebraic geometry. Our key input is a Tor-independence result for global sections of étale schemes over excellent regular local rings, which we will prove by tilting to perfect rings. |
| title | Affineness of the maximal étale locus |
| topic | Algebraic Geometry |
| url | https://arxiv.org/abs/2603.17760 |