Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Renormalized expansion for matrix models   Matrix models of 2d quantum gravity coupled to matter field are investigated
by the renormalized perturbational method, in which the matrix model
Hamiltonian is represented by the equivalent vector model. By the saddle point
method, the renormalization group beta-function is obtained in the successive
approximation.

33
The categories of this paper are: plasm-ph
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs
12
The categories of this paper are: nucl-th
29
The categories of this paper are: funct-an
28
The categories of this paper are: alg-geom
30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
16
The categories of this paper are: stat
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
2
The categories of this paper are: math
27
The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin
14
The categories of this paper are: math-ph
6
The categories of this paper are: astro-ph