Divisorial contractions to codimension three orbits
Fuente:
arXiv
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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2020
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| _version_ | 1866910627099836416 |
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| author | Boissière, Samuel Floris, Enrica |
| author_facet | Boissière, Samuel Floris, Enrica |
| contents | Let $G$ be a connected algebraic group. We study $G$-equivariant extremal contractions whose centre is a codimension three $G$-simply connected orbit. In the spirit of an important result by Kawakita in 2001, we prove that those contractions are weighted blow-ups. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2002_11016 |
| institution | arXiv |
| publishDate | 2020 |
| record_format | arxiv |
| spellingShingle | Divisorial contractions to codimension three orbits Boissière, Samuel Floris, Enrica Algebraic Geometry 14E05, 14E30 Let $G$ be a connected algebraic group. We study $G$-equivariant extremal contractions whose centre is a codimension three $G$-simply connected orbit. In the spirit of an important result by Kawakita in 2001, we prove that those contractions are weighted blow-ups. |
| title | Divisorial contractions to codimension three orbits |
| topic | Algebraic Geometry 14E05, 14E30 |
| url | https://arxiv.org/abs/2002.11016 |