Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Canonical Reduction of Symplectic Structures for the Maxwell and
  Yang-Mills Equations. Part 1   The canonical reduction algorithm is applied to Maxwell and Yang-Mills
equations considered as Hamiltonian systems on some fiber bundles with
symplectic and connection structures. The minimum interaction principle proved
to have geometric origin within the reduction method devised.

13
The categories of this paper are: quant-ph
26
The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph
35
The categories of this paper are: mtrl-th
36
The categories of this paper are: cmp-lg
28
The categories of this paper are: alg-geom
21
The categories of this paper are: adap-org
30
The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat
7
The categories of this paper are: hep-th
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
5
The categories of this paper are: gr-qc
24
The categories of this paper are: dg-ga
4
The categories of this paper are: cond-mat
32
The categories of this paper are: atom-ph