Index from a point

Name: Index from a point
Start: 2026-02-05T13:30:00-05:00
End: 2026-02-05T14:30:00-05:00
Location: CMSA, 20 Garden St, G10

CMSA Differential Geometry and Physics Seminar

When: February 5, 2026

1:30 pm - 2:30 pm

Where: CMSA, 20 Garden St, G10

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

Speaker: Monica Kang (Texas A&M University)

We argue that protected data of 4d N=2 SCFTs admits a purely algebro-geometric characterization. We conjecture that both the Macdonald index (and hence the Schur index) and the Higgs branch are encoded by a bifiltered affine scheme determined by OPE nilpotency and decoupling relations. Focusing on Argyres–Douglas theories, where the Higgs branch is a point, we show that this geometric construction suffices to reconstruct the full Macdonald index. This is based on recent works with Craig Lawrie and Jaewon Song.

Zoom link: https://harvard.zoom.us/j/97952922247?pwd=PMJqfJoalYI19S0z1RgDme2dNQeEiS.1
Password / Meeting ID: 868088 / 979 5292 2247