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POINTS OF SMALL HEIGHT ON AFFINE VARIETIES DEFINED OVER FUNCTION FIELDS OF FINITE TRANSCENDENCE DEGREE
Bulletin of the Australian Mathematical Society ( IF 0.6 ) Pub Date : 2020-10-05 , DOI: 10.1017/s0004972720001057 DRAGOS GHIOCA , DAC-NHAN-TAM NGUYEN
Bulletin of the Australian Mathematical Society ( IF 0.6 ) Pub Date : 2020-10-05 , DOI: 10.1017/s0004972720001057 DRAGOS GHIOCA , DAC-NHAN-TAM NGUYEN
We provide a direct proof of a Bogomolov-type statement for affine varieties V defined over function fields K of finite transcendence degree over an arbitrary field k , generalising a previous result (obtained through a different approach) of the first author in the special case when K is a function field of transcendence degree $1$ . Furthermore, we obtain sharp lower bounds for the Weil height of the points in $V(\overline {K})$ , which are not contained in the largest subvariety $W\subseteq V$ defined over the constant field $\overline {k}$ .
中文翻译:
在有限超越度的函数域上定义的仿射变体上的小高度点
我们为仿射品种提供 Bogomolov 型陈述的直接证明五 在函数字段上定义ķ 任意域上的有限超越度ķ ,在特殊情况下概括第一作者的先前结果(通过不同的方法获得)ķ 是超越度的函数场$1$ . 此外,我们获得了点的 Weil 高度的急剧下界$V(\overline {K})$ , 不包含在最大的子品种中$W\子集 V$ 在常量字段上定义$\overline {k}$ .
更新日期:2020-10-05
中文翻译:
在有限超越度的函数域上定义的仿射变体上的小高度点
我们为仿射品种提供 Bogomolov 型陈述的直接证明