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arXiv 1105.6083math.NT
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函数域塔中秩有界的椭圆曲线

Elliptic curves with bounded ranks in function field towers

Lisa Berger

摘要:

设$k$表示代数闭域。我们重新建设的作者的家庭椭圆曲线的有理函数域$k(t)$。结合组合分析与乌尔默的秩公式,我们证明了,对于所有的,但许多家庭的这些曲线,Mordell-Weil群在$k(t^{1/d})$的秩为零,因为$d$范围在正整数素数的特征$k$。

英文摘要:

Let $k$ denote an algebraically closed field. We revisit a construction of the author of families of elliptic curves over the rational function field $k(t)$. Combining a combinatorial analysis with a rank formula of Ulmer we prove that, for all but finitely many families of these curves, the Mordell-Weil groups over $k(t^{1/d})$ have rank zero, as $d$ ranges over positive integers prime to the characteristic of $k$.

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