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arXiv 0709.2603math.NT
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酉群和正交群中离散矩阵的存在性与等分布性

Existence et equidistribution des matrices de denominateur n dans les groupes unitaires et orthogonaux

Antonin Guilloux

摘要:

研究了由开条件定义的代数群中有理点的子集在有限顶点上的投影。利用椭圆混合,我们能够证明这些集合在实点上的投影的等分布结果。作为应用,我们研究了具有给定分母的有理酉矩阵的存在性和再划分问题。我们证明了这个问题的局部-整体原理和分母n-矩阵的集合在非空时的等分性。然后,我们研究了更复杂的情况下,非单连通群适用于二次型。

英文摘要:

We study some subsets of rational points in an algebraic groups defined by open conditions on their projection in the finite adeles points. Using adelic mixing we are able to prove an equidistribution's result for the projection of these sets in the real points. As an application, we study the existence and the repartition of rational unitary matrices having a given denominator. We prove a local-global principle for this problem and the equirepartition of the sets of denominator n-matrices when they are not empty. Then we study the more complicated case of non simply-connected groups applying it to quadratic forms.

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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