MS Seminar (Mathematics - String Theory)

Speaker: Andrea Prudenziati (YITP)
Title: Looking for a worldsheet description of the Nekrasov partition function
Date: Tue, May 15, 2012, 13:15 - 14:45
Place: Seminar Room A
Related File: 682.pdf
Abstract: I will show how the Nekrasov partition function, expanded in a certain two parameters way, can be described by a world sheet theory involving Riemann surfaces with genus counting associated to both the parameters. I will present the most general ansatz compatible with the holomorphic anomaly equation respected by those amplitudes and derive all the possible conditions that have to be satisfied. Finally I will try to give some physical insight for this model and present my conclusions.