University of Cambridge > Talks.cam > Isaac Newton Institute Seminar Series > Gauge origami and Oh-Thomas virtual cycles

  Browse A-Z

Log in

University Account External (via Google)

🔐 Log In

Information on

Subscribing to talksdetails Finding a talkdetails Adding a talkdetails Disseminating talksdetails Help and Documentationdetails

ℹī¸ Information

Gauge origami and Oh-Thomas virtual cycles

Download to your calendar using vCal

If you have a question about this talk, please contact nobody.

EMGW05 - Moduli stacks and enumerative geometry

Nekrasov’s 4D ADHM quiver is a generalisation of the 2D and 3D ADHM quivers. I will give a mathematical definition of the corresponding “gauge origami” partition function in terms of certain torus localized Oh-Thomas virtual cycles. I will relate the orientation problem of gauge origami to the one of Hilbert schemes of points on affine 4-space, which was previously analysed in physics by Nekrasov-Piazzalunga (“Magnificent Four”) and in algebraic geometry in a joint work with J. Rennemo. I will provide a conjectural sheaf-theoretic interpretation of gauge origami in terms of certain moduli of 2-dimensional framed sheaves on (P1)4. Joint work in progress with N. Arbesfeld and W. Lim. 

This talk is part of the Isaac Newton Institute Seminar Series series.

This talk is included in these lists:

Note that ex-directory lists are not shown.

Other lists

Virtual (Zoom) register here: https://www.eventbrite.co.uk/e/153473203483 Max Perutz Lecture Theatre, MRC LMB Cavendish Laboratory, Pippard Lecture Theatre & TEAMS

Other talks

Loke CTR Annual Meeting 2026 - Epigenetics of embryogenesis and placentation Title to be confirmed Reproducibility In Astrophysical Simulations: The AGORA Initiative and a 14-Year Human Experiment (In Memory of Joel Primack) Coming soon Talk TBC On convective penetration of a buoyant plume into a stably stratified layer
 

Š 2006-2025 Talks.cam, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity