Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Complete set of electromagnetic corrections to strongly interacting
  systems   We show how to obtain a complete set of electromagnetic corrections to a
given nonperturbative model of strong interactions based on integral equations.
The gauge invariance of these corrections is a consequence of their
completeness.

28
The categories of this paper are: alg-geom
19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
17
The categories of this paper are: q-fin
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys
37
The categories of this paper are: supr-con
34
The categories of this paper are: chem-ph
4
The categories of this paper are: cond-mat
3
The categories of this paper are: physics
16
The categories of this paper are: stat
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph