Salvato in:
| Autore principale: | |
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| Natura: | Preprint |
| Pubblicazione: |
2008
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| Soggetti: | |
| Accesso online: | https://arxiv.org/abs/0803.3373 |
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Sommario:
- For each variety in positive characteristic, there is a series of canonically defined blowups, called F-blowups. We are interested in the question of whether the $e+1$-th blowup dominates the $e$-th, locally or globally. It is shown that the answer is affirmative (globally for any $e$) when the given variety is F-pure. As a corollary, we obtain some result on the stability of the sequence of F-blowups. We also give a sufficient condition for local domination.