Exponential sums over finite fields arise in many problems of number theory. We will discuss the elementary aspects of the theory (centered on the Riemann Hypothesis for curves, following Stepanov's method) and survey the formalism arising from Deligne's general form of the Riemann Hypothesis over finite fields. We will then discuss various applications, especially in analytic number theory. The goal is to understand both the basic results on exponential sums in one variable, and the general formalism of Deligne and Katz that underlies estimates for much more general types of exponential sums, including the "trace functions" over finite fields.
We prepare an exercise sheet every two weeks. The new exercises will be posted here every other Thursday. We expect you to look at the problems and to prepare questions for the exercise class one week after. Please hand in your solutions in the exercise class.
|Exercise sheet 1
|Exercise sheet 2
|Exercise sheet 3
|Chapter 6 in Exponential sums over finite fields, I: elementary methods
|Exercise sheet 4
|Exercise sheet 5
|Exercise sheet 6
The first exercise class will be in the first week of the semester, Friday 21th of September.
|HG G 26.5