Math 223b (Algebraic Number Theory)

Spring 2021

Classes: Mondays 9:00am - 10:15am and Fridays 9:00am - 10:15am
Sections: Thursdays 4:30pm - 5:30pm every other week, starting February 12
Instructor: Fabian Gundlach (, office hours right after class or by appointment
Course assistant: Kenz Kallal (, office hours Thursdays 3pm - 4pm


Please contact me with any questions.

To discuss mathematics in sections, office hours, and among yourselves, a graphics tablet can be useful. You can fill out this form to borrow an iPad with stylus from Harvard.


Everything will take place via Zoom. The meeting id for the classes and Fabian's office hours is 963-4209-8909. The password is the product of the six smallest prime numbers.
For the meeting id for sections and Kenz's office hours, contact Kenz.


Final paper

Ideas for final papers
The final paper will be due May 7 at 1:59pm (ET). If you send me a draft by May 2, I will look over it and send you feedback.


All notes, password-protected class recordings