Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Critical discussion of Tomboulis's approach to the confinement problem   The approach to the confinement problem proposed by E.T. Tomboulis is
analyzed critically. We point out some problems and discuss the chances of
producing a proof by using his strategy.

23
The categories of this paper are: solv-int
18
The categories of this paper are: econ
8
The categories of this paper are: hep-ex
17
The categories of this paper are: q-fin
4
The categories of this paper are: cond-mat
32
The categories of this paper are: atom-ph
37
The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol
1
The categories of this paper are: cs
6
The categories of this paper are: astro-ph
11
The categories of this paper are: hep-lat
5
The categories of this paper are: gr-qc