Seminar series
Date
Wed, 21 Oct 2026
09:30
09:30
Location
Exceptionally, this seminar will take place in Classroom C2.
Speaker
Noah Dizep
Organisation
Heriot-Watt University, Edinburgh
The recent seminal work by Bae, Kool and Park establishes a DT type theory counting surfaces in Calabi--Yau fourfolds. I will present on joint work with R. Szabo on computing a variant of surface counts on CY4s using Diaconescu--Piazzalunga's technology of ADHM Bundles and Coulomb branch localization on a smooth, toric, projective surface.
We compute these enumerative invariants by computing the partition function of a topologically twisted Gauge theory similar in nature to Vafa--Witten's twist of 4d N=4 SYM.