Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dynamical Symmetry Breaking in a Gauge Theory ``Thirring Model''   Dynamical fermion mass generation is studied in the three-dimensional
Thirring model reformulated as a gauge theory by introducing hidden local
symmetry. The analysis by use of Schwinger-Dyson equation is shown to exhibit a
critical behavior as the number $N$ of four-component fermions approaches
$N_{\rm cr}=128/3\pi^{2}$.

29
The categories of this paper are: funct-an
30
The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex
24
The categories of this paper are: dg-ga
28
The categories of this paper are: alg-geom
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
26
The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th
32
The categories of this paper are: atom-ph
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
16
The categories of this paper are: stat
31
The categories of this paper are: ao-sci