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- FIELD
- Math: HCMC
- DATE
-
Mar 20 (Thu), 2025
- TIME
- 14:00 ~ 15:00
- PLACE
- 수림(204)
- SPEAKER
- 임우남
- HOST
- Kim, In-Kyun
- INSTITUTE
- 연세대학교
- TITLE
- [HG_AG]Nekrasov’s gauge origami via DT4 theory
- ABSTRACT
- 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.
- FILE
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