Bertini theorems over finite fields
Bertini theorems over finite fields
复制标题
有限域上的贝尔蒂尼定理
DOI:
10.4007/annals.2004.160.1099
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发表时间:
2002
影响因子:
4.9
通讯作者:
B. Poonen
中科院分区:
文献类型:
--
作者:
B. Poonen
Let X be a smooth quasiprojective subscheme of Pn of dimension m iÝ 0 over Fq. Then there exist homogeneous polynomials f over Fq for which the intersection of X and the hypersurface f = 0 is smooth. In fact, the set of such f has a positive density, equal to ?AEX(m+1).1, where ?AEX(s) = ZX(q.s) is the zeta function of X. An analogue for regular quasiprojective schemes over Z is proved, assuming the abc conjecture and another conjecture.