Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Virasoro constraint for Nekrasov instanton partition function   We show that Nekrasov instanton partition function for SU(N) gauge theories
satisfies recursion relations in the form of U(1)+Virasoro constraints when
{\beta} = 1. The constraints give a direct support for AGT conjecture for
general quiver gauge theories.

30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys
24
The categories of this paper are: dg-ga
28
The categories of this paper are: alg-geom
4
The categories of this paper are: cond-mat
36
The categories of this paper are: cmp-lg
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
27
The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
11
The categories of this paper are: hep-lat
8
The categories of this paper are: hep-ex
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph