Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Schwinger-Dyson Equations and Chiral Symmetry Breaking in 2D Induced
  Gravity   The Schwinger-Dyson equations in the ladder approximation for $2D$ induced
gravity coupled to fermions on a flat background are obtained in conformal
gauge. A numerical study of these equations shows the possiblity of chiral
symmetry breaking in this theory.

6
The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
11
The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga
34
The categories of this paper are: chem-ph
27
The categories of this paper are: comp-gas
21
The categories of this paper are: adap-org
2
The categories of this paper are: math
16
The categories of this paper are: stat
31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
37
The categories of this paper are: supr-con