Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Elliptic solutions of the semi-discrete BKP equation   We consider elliptic solutions of the semi-discrete BKP equation and derive
equations of motion for their poles. The basic tool is the auxiliary linear
problem for the wave function.

31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
32
The categories of this paper are: atom-ph
0
The categories of this paper are: hep-ph
16
The categories of this paper are: stat
27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
24
The categories of this paper are: dg-ga
13
The categories of this paper are: quant-ph
5
The categories of this paper are: gr-qc
33
The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph
6
The categories of this paper are: astro-ph
17
The categories of this paper are: q-fin