Sparse equidistribution problems, period bounds and subconvexity

• 成果类型: Article
• 署名作者: Venkatesh, Akshay
• 刊物名称: ANNALS OF MATHEMATICS
• ISSN/ISSBN: 0003-486X
• 发表日期: 2010
• 页码: 989-1094
• 关键词: selberg l-functions; rankin-selberg; unitary representations; fourier coefficients; distributions; RIGIDITY; points; 4th

摘要

We introduce a geometric method to bound periods of automorphic forms. The key features of this method are the use of equidistribution results in place of mean value theorems, and the systematic use of mixing and the spectral gap. Applications are given to equidistribution of sparse subsets of horocycles and to equidistribution of CM points; to subconvexity of the triple product period in the level aspect over number fields, which implies subconvexity for certain standard and Rankin-Selberg L-functions; and to bounding Fourier coefficients of automorphic forms.