Lecture Course on Algebra (Master)
Birgit Richter, email: birgit.richter at uni-hamburg.de
Plan: The aim of this course is to present the basics of homological algebra. Methods from homological algebra are used in many areas of pure mathematics. I will develop the theoretical background (rings and modules, basics from category theory) and then discuss resolutions and derived functors. Our two main applications are Hochschild homology (which is a homology theory for associative algebras) and group homology. Homological algebra is pretty useless unless you are able to calculate things, so I'll also discuss spectral sequences.
If you plan to do a master thesis on a topic related to this lecture course, then please contact me as early as possible.
Literature: Here are lecture notes for this course. Beware, these are probably full of typos and mistakes. Use at your own risk!
  • Brown, Kenneth S. Cohomology of groups. Corrected reprint of the 1982 original. Graduate Texts in Mathematics, 87. Springer-Verlag, New York, 1994. x+306 pp.
  • Loday, Jean-Louis, Cyclic homology. Second edition. Grundlehren der Mathematischen Wissenschaften 301. Springer-Verlag, Berlin, 1998. xx+513 pp.
  • McCleary, John, A user's guide to spectral sequences, Second edition. Cambridge Studies in Advanced Mathematics, 58. Cambridge University Press, Cambridge, 2001. xvi+561 pp.
  • Richter, Birgit, From Categories to Homotopy Theory, Cambridge Studies in Advanced Mathematics 188, 2020. x+390 pp..
  • Rotman, Joseph J. An introduction to homological algebra. Second edition. Universitext. Springer, New York, 2009. xiv+709 pp.
  • Weibel, Charles, An introduction to homological algebra. Cambridge Studies in Advanced Mathematics, 38. Cambridge University Press, Cambridge, 1994. xiv+450 pp.
Exam: The final exam for this course is an oral exam after the end of term. In order to qualify for the exam, you have to present solutions to the weekly exercises four times in the exercise class.
When?: The exercise class for this lecture is We 2:30-4pm via zoom. You find the login data in STiNE and moodle. The videos for the lecture course are avaible via the moodle page of the course. You find the subscription key for moodle in STiNE.

Exercise sheets: no 1, no 2, no 3, no 4, no 5, no 6, no 7, no 8, no 9, no 10, no 11, no 12