Virtual Cartier divisors and blow-ups
| Autor: | Khan, Adeel A., Rydh, David |
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| Rok vydání: | 2018 |
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| Druh dokumentu: | Working Paper |
| Popis: | We prove a universal property for blow-ups in regularly immersed subschemes, based on a notion we call "virtual effective Cartier divisor". We also construct blow-ups of quasi-smooth closed immersions in derived algebraic geometry. Comment: 19 pages; version 2 adds a comparison between virtual and generalized Cartier divisors, a new section on simultaneous blow-ups in multiple centres and blow-ups in unramified centres, and a new co-author |
| Databáze: | arXiv |
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