Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Lectures and notes: Mirzakhani's volume recursion and approach for the
  Witten-Kontsevich theorem on moduli tautological intersection numbers   The materials accompany a lecture short course presented at the 2011 Park
City Mathematics Institute, Graduate Summer School on Moduli Spaces of Riemann
Surfaces. The lectures were part of/coordinated with an overall program,
including lectures by Ursula Hamenstadt on Teichmueller Theory, Andy Putman on
Mapping Class and Torelli Groups, and Carel Faber on Tautological algebras of
Moduli Spaces.

1
The categories of this paper are: cs
18
The categories of this paper are: econ
3
The categories of this paper are: physics
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
27
The categories of this paper are: comp-gas
7
The categories of this paper are: hep-th
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
14
The categories of this paper are: math-ph
13
The categories of this paper are: quant-ph
31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess