Affiliation:
1. Stat‐Math Unit Indian Statistical Institute Kolkata India
2. Indian Institute of Technology Mumbai India
Abstract
AbstractLet
where is a bump function supported on the interval [1,2] and satisfying and ’s are the normalized Fourier coefficients of Hecke eigenform, and is a primitive character of conductor . In this article, we prove a sub‐Weyl type cancellation range
provided that . Note that the above bound is nontrivial if .