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Groupoids for beginners

Thomas Schmidt
Foredrag for studerende
Fredag, 13 februar, 2015, at 15:15-16:00, in Aud. D4 (1531-219)
What's the difference between Rubiks Cube and the 15 Puzzle? What do groups, graphs and equivalence relations have in common? How can I do algebraic topology in non-connected spaces? How do I construct C*-algebras from non-invertible dynamical systems?

All your questions will be answered in this introductory talk on groupoids. The talk will be Friday-afternoon-friendly, so lots of examples, many illuminating drawings, and no proofs or technical calculations. The talk should be accessible to anyone with basic knowledge of groups (i.e. the course in Algebra).
Organiseret af: FFS
Kontaktperson: Mads Bech