报告题目 (Title):Sums of Fourier coefficients of automorphic forms(自守形式傅里叶系数的和)
报告人 (Speaker): 林永晓 教授(山东大学)
报告时间 (Time):2023年10月8日(周日) 8:45--11:15
报告地点 (Place):腾讯会议840126000(密码123456)
邀请人(Inviter):王玉超
主办部门:永利数学系
报告摘要:The Dirichlet divisor problem asks how precise one can evaluate the partial sum of the divisor function $\tau(n)$, the number of positive divisors of the integer $n$. More generally for $\lambda_F(n)$ given by the Fourier coefficients of an automorphic form $F$ on $\rm{GL}_d$, we will discuss the problem of analyzing sums of $\lambda_F(n)$ weighted by oscillatory exponential functions and their application in bounding partial sum of the coefficients $\lambda_F(n)$. We will discuss several examples where factorization of the coefficients allows some improvements over previous works.