RIND seminar on Mathematical Physics and String Theory

May 30, 2022 at 4 p.m. c.t. in Heidelberg and via Zoom, BigBlueButton

Ilka Brunner (LMU München)
Nils Carqueville (Universität Wien)
Hans Jockers (JGU Mainz)
Peter Mayr (LMU München)
Simone Noja (Universität Heidelberg)
Ivo Sachs (LMU München)
Johannes Walcher (Universität Heidelberg)

Joint seminar series on Mathematical Physics and String Theory

The index of M-theory and equivariant volumes
Maxim Zabzine (Uppsala U.)

Abstract: Motivated by M-theory, I will review rank n nn K-theoretic Donaldson-Thomas theory on a toric threefold and its factorisation properties in the context of 5d/7d correspondence. In the context of this discussion I will revise the use of the Duistermaat-Heckman formula for non-compact toric Kahler manifolds, pointing out some mathematical and physical puzzles.