Convolution and Equidistribution : Sato-Tate Theorems for Finite-Field Mellin Transforms

Convolution and Equidistribution explores an important aspect of number theory--the theory of exponential sums over finite fields and their Mellin transforms--from a new, categorical point of view.The book presents fundamentally important results and a plethora of examples, opening up new directions in the subject.The finite-field Mellin transform (of a function on the multiplicative group of a finite field) is defined by summing that function against variable multiplicative characters.The basic question considered in the book is how the values of the Mellin transform are distributed (in a probabilistic sense), in cases where the input function is suitably algebro-geometric.This question is answered by the book's main theorem, using a mixture of geometric, categorical, and group-theoretic methods.By providing a new framework for studying Mellin transforms over finite fields, this book opens up a new way for researchers to further explore the subject.