Math 445 – Representation Theory

University of Toronto

Syllabus

Click here for syllabus

Instructor

Name: Daniel Litt

Email: daniel.litt@utoronto.ca

Office Hours: 10am Wednesdays, Huron 1018

Teaching Assistant

Name: Austin Sun

Email: austin.sun@mail.utoronto.ca

Textbooks / Course Readings

Notes, taken by Cole Franklin and Yun-chi Tang

See here: Notes

Mark Breakdown

Component Percentage
Assignments (best 4 of 5) 40%
Term Test 25%
Final Assessment 35%

Assignments

There will be 5 assignments. The assignment with the lowest grade will be dropped. Late submissions receive a mark of zero unless an extension is granted by the instructor. Tentative due dates are listed in the lecture schedule below.

Term Test

There will be one term test, which is 2 hours long, on February 27 in class.

Final Assessment

The final assessment will be held during the final assessment period in April 2024, scheduled by the registrar.

Schedule of Lectures

Week Dates Topics
Week 1 Jan 6 - Jan 10 Basics of representation theory of groups, semisimplicity, beginnings of character theory
Week 2 Jan 13 - Jan 17 Character theory, examples, induction and restriction, tensor products, HW 1 due
Week 3 Jan 20 - Jan 24 Group algebra, field of definition, Brauer’s theorem
Week 4 Jan 27 - Jan 31 Symmetric groups, HW 2 due
Week 5 Feb 3 - Feb 7 SL2(Fp)
Week 6 Feb 10 - Feb 14 Lie algebras, sl2, HW 3 due
Week 7 Feb 17 - Feb 21 Reading week (no classes)
Week 8 Feb 24 - Feb 28 sl2 continued, and an application to combinatorics, Term Test (Feb 27)
Week 9 Mar 3 - Mar 7 More Lie algebras, ideals, root systems, HW 4 due
Week 10 Mar 10 - Mar 14 Classification of semisimple Lie algebras
Week 11 Mar 17 - Mar 21 Representations of semisimple Lie algebras
Week 12 Mar 24 - Mar 28 Pro-p groups, uniform pro-p groups, HW 5 due
Week 13 Mar 31 - Apr 4 Representation theory of SLn(ℤ), n ≥ 3