Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Half-monopoles and half-vortices in the Yang-Mills theory   It is demonstrated that there are smooth Yang-Mills potentials which
correspond to monopoles and vortices of one-half winding number. They are the
generic configurations, in contrast to the integral winding number
configurations like the 't Hooft-Polyakov monopole.

1
The categories of this paper are: cs
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
33
The categories of this paper are: plasm-ph
18
The categories of this paper are: econ
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
26
The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
13
The categories of this paper are: quant-ph
9
The categories of this paper are: nlin
23
The categories of this paper are: solv-int
27
The categories of this paper are: comp-gas