Divisorial contractions to codimension three orbits
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.
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Association Epiga
2021-07-01
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| Series: | Épijournal de Géométrie Algébrique |
| Subjects: | |
| Online Access: | https://epiga.episciences.org/7020/pdf |