Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Covariant quantization of Yang-Mills theory in the first order formalism   In the present paper the Yang-Mills theory in the first order formalism is
studied. On classical level the first order formulation is equivalent to the
standard second order description of the Yang-Mills theory. It is proven that
both formulations remain equivalent on quantum level as well.

28
The categories of this paper are: alg-geom
19
The categories of this paper are: eess
13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph
23
The categories of this paper are: solv-int
27
The categories of this paper are: comp-gas
34
The categories of this paper are: chem-ph
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
0
The categories of this paper are: hep-ph
6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol
11
The categories of this paper are: hep-lat
18
The categories of this paper are: econ