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Zigzags, adjoints, and bordisms

April 20, 2026 @ 3:00 pm - 4:00 pm

Quantum Field Theory and Physical Mathematics Seminar

Speaker: Lorenzo Riva (Harvard CMSA)

Title: Zigzags, adjoints, and bordisms

Abstract: We will learn how to freely add adjoints to a category using a combinatorial procedure which involves drawing zigzags of squares. Peculiarly, we can use these to draw some bordisms. This is joint work with Martina Rovelli.

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