Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Generation of Matrix Models by W-operators   We show that partition functions of various matrix models can be obtained by
acting on elementary functions with exponents of W-operators. A number of
illustrations is given, including the Gaussian Hermitian matrix model,
Hermitian model in external field and the Hurwitz-Kontsevitch model, for which
we suggest an elegant matrix-model representation. In all these examples, the
relevant W-operators belong to the W_3-algebra.

10
The categories of this paper are: q-bio
28
The categories of this paper are: alg-geom
36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph
26
The categories of this paper are: bayes-an
25
The categories of this paper are: patt-sol
31
The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc
2
The categories of this paper are: math
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
3
The categories of this paper are: physics
17
The categories of this paper are: q-fin
0
The categories of this paper are: hep-ph
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph