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Rational versus transcendental points on analytic Riemann surfaces
manuscripta mathematica ( IF 0.5 ) Pub Date : 2021-07-09 , DOI: 10.1007/s00229-021-01324-4
Carlo Gasbarri 1
Affiliation  

Let (XL) be a polarized variety over a number field K. We suppose that L is an hermitian line bundle. Let M be a non compact Riemann Surface and \(U\subset M\) be a relatively compact open set. Let \(\varphi :M\rightarrow X(\mathbf{C})\) be a holomorphic map. For every positive real number T, let \(A_U(T)\) be the cardinality of the set of \(z\in U\) such that \(\varphi (z)\in X(K)\) and \(h_L(\varphi (z))\le T\). After a revisitation of the proof of the sub exponential bound for \(A_U(T)\), obtained by Bombieri and Pila, we show that there are intervals of the reals such that for T in these intervals, \(A_U(T)\) is upper bounded by a polynomial in T. We then introduce subsets of type S with respect of \(\varphi \). These are compact subsets of M for which an inequality similar to Liouville inequality on algebraic points holds. We show that, if M contains a subset of type S, then, for every value of T the number \(A_U(T)\) is bounded by a polynomial in T. As a consequence, we show that if M is a smooth leaf of an algebraic foliation in curves defined over K then \(A_U(T)\) is bounded by a polynomial in T. Let S(X) be the subset (full for the Lebesgue measure) of points which verify some kind of Liouville inequalities. In the second part we prove that \(\varphi ^{-1}(S(X))\ne \emptyset \) if and only if \(\varphi ^{-1}(S(X))\) is full for the Lebesgue measure on M.



中文翻译:

解析黎曼曲面上的有理点与超越点

令 ( XL ) 是数域K 上的极化变体。我们假设L是一个厄密线丛。设M是一个非紧黎曼曲面,\(U\subset M\)是一个相对紧的开集。令\(\varphi :M\rightarrow X(\mathbf{C})\)是一个全纯映射。对于每个正实数T,令\(A_U(T)\)\(z\in U\)集合的基数,使得\(\varphi (z)\in X(K)\)\ (h_L(\varphi (z))\le T\)。在重新审视 \(A_U(T)\)的次指数界的证明之后,由 Bombieri 和 Pila 获得,我们证明存在实数的区间,使得对于这些区间中的T\(A_U(T)\)T 中多项式的上限。然后我们引入关于\(\varphi \)的类型S 的子集。这些是M 的紧子集,其不等式类似于代数点上的刘维尔不等式。我们证明,如果M包含类型S的子集,那么对于T每个值,数字\(A_U(T)\)都受T 中的多项式限制。因此,我们证明如果M 是在K 上定义的曲线中代数叶理的光滑叶,然后\(A_U(T)\)T 中的多项式限定。令S ( X ) 是验证某种 Liouville 不等式的点的子集(Lebesgue 测度的完整点)。在第二部分,我们证明\(\varphi ^{-1}(S(X))\ne \emptyset \)当且仅当\(\varphi ^{-1}(S(X))\)是对M上的 Lebesgue 测度满。

更新日期:2021-07-09
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