Euler characteristics of Hilbert schemes of points on surfaces with simple singularities
Abstract
This is an announcement of conjectures and results concerning the generating series of Euler characteristics of Hilbert schemes of points on surfaces with simple (Kleinian) singularities. For a quotient surface C^2/G with G a finite subgroup of SL(2, C), we conjecture a formula for this generating series in terms of Lie-theoretic data, which is compatible with existing results for type A singularities. We announce a proof of our conjecture for singularities of type D. The generating series in our conjecture can be seen as a specialized character of the basic representation of the corresponding (extended) affine Lie algebra; we discuss possible representation-theoretic consequences of this fact. Our results, respectively conjectures, imply the modularity of the generating function for surfaces with type A and type D, respectively arbitrary, simple singularities, confirming predictions of S-duality.
Keywords
Cite
@article{arxiv.1512.06844,
title = {Euler characteristics of Hilbert schemes of points on surfaces with simple singularities},
author = {Ádám Gyenge and András Némethi and Balázs Szendrői},
journal= {arXiv preprint arXiv:1512.06844},
year = {2015}
}