Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A pedagogical introduction to the Slavnov formulation of quantum
  Yang-Mills theory   Over the last few years, Slavnov has proposed a formulation of quantum
Yang-Mills theory in the Coulomb gauge which preserves simultaneously manifest
Lorentz invariance and gauge invariance of the ghost field Lagrangian. This
paper presents in detail some of the necessary calculations, i.e. those dealing
with the functional integral for the S-matrix and its invariance under shifted
gauge transformations. The extension of this formalism to quantum gravity in
the Prentki gauge deserves consideration.

13
The categories of this paper are: quant-ph
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol
31
The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph
10
The categories of this paper are: q-bio
27
The categories of this paper are: comp-gas
28
The categories of this paper are: alg-geom
17
The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex
35
The categories of this paper are: mtrl-th