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Nagata–Biran conjecture : ウィキペディア英語版
Nagata–Biran conjecture
In mathematics, the Nagata–Biran conjecture, named after Masayoshi Nagata and Paul Biran, is a generalisation of the Nagata conjecture to arbitrary polarised surfaces.
Let ''X'' be a smooth algebraic surface and ''L'' be an ample line bundle on ''X'' of degree ''d''. The Nagata–Biran conjecture states that for sufficiently large ''r'' the Seshadri constant satisfies
: \varepsilon(p_1,\ldots,p_r;X,L) = {d \over \sqrt{r}}.
==References==

*. See in particular page 3 of the pdf.
Category:Conjectures

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Nagata–Biran conjecture」の詳細全文を読む



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