Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On some soliton equations in 2+1 dimensions and their 1+1 and/or 2+0
  dimensional integrable reductions   Some soliton equation in 2+1 dimensions and their 1+1 and/or dimensional
integrable reductions are considered.

25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
3
The categories of this paper are: physics
16
The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
4
The categories of this paper are: cond-mat
2
The categories of this paper are: math
21
The categories of this paper are: adap-org
1
The categories of this paper are: cs
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
7
The categories of this paper are: hep-th