Zigzags, adjoints, and bordisms

Name: Zigzags, adjoints, and bordisms
Start: 2026-04-20T15:00:00-04:00
End: 2026-04-20T16:00:00-04:00
Location: CMSA, 20 Garden St, G02

CMSA QUANTUM FIELD THEORY AND PHYSICAL MATHEMATICS SEMINAR

When: April 20, 2026

3:00 pm - 4:00 pm

Where: CMSA, 20 Garden St, G02

Address: 20 Garden Street, Cambridge, MA 02138, United States

Speaker: Lorenzo Riva (Harvard CMSA)

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.

In person and online:

Zoom link: https://harvard.zoom.us/j/98290689769
Password: CMSA-QFTPM