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Yorck Sommerhäuser
Courses

Hopf Algebras
 Winter semester 2016
 Course: MATH 6329
 Instructor: Y. Sommerhäuser
 Schedule:
 Time: Tue 12:00 m12:50 pm, Thu 12:00 m12:50 pm, Fri 1:00 pm1:50 pm
 Room: SN 2041
 Office hours of Y. Sommerhäuser: Tue, Thu 4:00 pm5:00 pm and by appointment
 Textbook: S. Montgomery: Hopf algebras and their actions on rings, 2nd
revised printing, Reg. Conf. Ser. Math., Vol. 82, Am. Math. Soc., Providence,
1997
 Outline: We discuss Hopf algebras and Hopf modules, integrals,
Frobenius algebras, Maschke's theorem for Hopf algebras, modular functions and elements, Radford's formula for the fourth power of the antipode, trace formulas for integrals, the LarsonRadford theorem on the involutivity of semisimple Hopf algebras over fields of characteristic zero, the NicholsZoeller freeness theorem, the class equation for Hopf algebras, the Drinfel'd double, the exponent of a Hopf algebra, and Cauchy's theorem for Hopf algebras.
 Exams: There will be a midterm exam and a comprehensive final exam. The midterm exam takes place on Tuesday, February 16. The final exam takes place on Monday, April 18, at 1:00 pm at the AAC.
 Homework: On Tuesday, a weekly exercise sheet will be handed out, containing three or four problems. This has to be completed until the next Tuesday. While it is allowed to collaborate on the problems, every student is required to write up his solution in his own words.
 Examination criteria: The final mark will be computed using the following weights.
 Homework: 25 percent
 Midterm exam: 25 percent
 Final exam: 50 percent
 Syllabus.
 Exercise sheets:
Former courses
Last modified: April 19, 2020
