Seshadri constants and negative curves on blowups of ruled surfaces
Fuente:
arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866912182001729536 |
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| author | Jacob, Cyril J. Khan, Bivas Sebastian, Ronnie |
| author_facet | Jacob, Cyril J. Khan, Bivas Sebastian, Ronnie |
| contents | In this article we compute Seshadri constants of ample line bundles on the blowup of Hirzebruch surface $\mathbb{F}_e$ at $r\leqslant e+3$ very general points. Similarly, we compute Seshadri constants on the blowups of certain decomposable ruled surfaces over smooth curves of non-zero genus. We also prove some results related to bounded negativity of blowups of Hirzebruch surfaces and ruled surfaces. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_05065 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Seshadri constants and negative curves on blowups of ruled surfaces Jacob, Cyril J. Khan, Bivas Sebastian, Ronnie Algebraic Geometry 14C20, 14E05, 14J26 In this article we compute Seshadri constants of ample line bundles on the blowup of Hirzebruch surface $\mathbb{F}_e$ at $r\leqslant e+3$ very general points. Similarly, we compute Seshadri constants on the blowups of certain decomposable ruled surfaces over smooth curves of non-zero genus. We also prove some results related to bounded negativity of blowups of Hirzebruch surfaces and ruled surfaces. |
| title | Seshadri constants and negative curves on blowups of ruled surfaces |
| topic | Algebraic Geometry 14C20, 14E05, 14J26 |
| url | https://arxiv.org/abs/2501.05065 |