Number Theory II: Introduction to Modular Forms Spring 2025

Lecturer
Emmanuel Kowalski
Coordinator
Ana Marija Vego
Lectures
Wednesdays, 14 to 16 in HG E 1.1
Fridays, 10 to 12 in HG E 1.1.
Exercise classes will be held on average once every two weeks, usually during the Wednesday lecture. They will be announced in class and below.
The lectures should be automatically recorded; the video recordings will then be available on the ETH Video Portal.

Summary

The course is an introduction to modular forms and their applications in number theory.

Lecture notes

The course will be mostly based on the books of Serre and Iwaniec listed below. I will also post the scans of my handwritten lecture notes after each class with the summary of the content below.
For the basic background material in number theory, I will use mostly the lecture notes from the Number Theory I class of Fall 2024.

Exercises

The lecture will be accompanied by roughly biweekly exercise classes, usually during the Wednesday class. We will announce the precise dates in the lecture as well as here. You should submit your exercise sheets as a PDF upload to the SamUpTool.

Dates of exercise classes (subject to changes!)
February 26
March 12
March 26
April 9
April 30
May 14
May 28
Exercise sheet Due by Solutions
March 3

Summary of the lectures

We will summarize here briefly the content of each lecture.
DayContent
19.2.2025 Introduction to the class: some examples of results that can be proved with modular forms, although the statements do not mention them at all. Basic definitions of modular forms.
26.2.2025 Exercises

Literature