2025 KIAS HCMC
Algebraic Geometry Seminar
Upcoming Talks
March 20 (Thu) 2025, 14:00~15:00 - HCMC Seminar Room
Speaker: Woonam Lim (Yonsei University)
Title: Nekrasov’s gauge origami via DT4 theory
The study of the classical instantons on the spacetime has led to many interesting mathematics. In a series of papers, Nekrasov introduced and studied the generalised ADHM equations, whose solutions are instantons on the “origami spacetime”. In this talk, I will explain how to interpret Nekrasov’s gauge origami via DT4 theory. Our main result computes the orientation in the Oh-Thomas localisation formula and matches it with the definition from physics. If time permits, I will discuss some applications and a conjectural sheaf-theoretic description of the gauge origami theory. This is joint work in progress with N. Arbesfeld and M. Kool.
Previous Talks
Organizers
Junho Choe, In-Kyun Kim, Jeong-Seop Kim, Hyeonjun Park
supported by June E Huh Center for Mathematical Challenges at Korea Institute for Advanced Study