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arXiv 1301.3608math.NT
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泛Gauss-Thakur和与L-级数

Universal Gauss-Thakur sums and L-series

Bruno Angles, Federico Pellarin

摘要:

本文研究了在具有q个元素F_q的有限域的代数闭包的元素上赋值的Anderson-Thakur函数Ω的性质。实际上,这个函数与域K=F_q(T)的显式类域理论有着相当显著的关系。我们将看到,这些值,连同它的除导数的值,生成K的极大阿贝尔扩张,它在无穷远处是光滑分歧的。我们还将看到,Ω是一个普适的高斯-塔库尔和,我们将详细解释。然后,我们将使用这些结果,以显示存在的功能关系的一类L-系列介绍的第二作者。最后,我们的结果将被应用于Bernoulli-Carlitz分式的一类新的同余,并提出了一个解析猜想,暗示这类分式模A=F_q[T]的素理想的一个有趣的行为.

英文摘要:

In this paper we study the behavior of the function omega of Anderson-Thakur evaluated at the elements of the algebraic closure of the finite field with q elements F_q. Indeed, this function has quite a remarkable relation to explicit class field theory for the field K=F_q(T). We will see that these values, together with the values of its divided derivatives, generate the maximal abelian extension of K which is tamely ramified at infinity. We will also see that omega is, in a way that we will explain in detail, an universal Gauss-Thakur sum. We will then use these results to show the existence of functional relations for a class of L-series introduced by the second author. Our results will be finally applied to obtain a new class of congruences for Bernoulli-Carlitz fractions, and an analytic conjecture is stated, implying an interesting behavior of such fractions modulo prime ideals of A=F_q[T].

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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