Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Classification of seven-vertex solutions of the coloured Yang-Baxter
  equation   In this paper all seven-vertex type solutions of the coloured Yang-Baxter
equation dependent on spectral as well as coloured parameters are given. It is
proved that they are composed of five groups of basic solutions, two groups of
their degenerate forms up to five solution transformations. Moreover, all
solutions can be claasified into two types called Baxter type and free-fermion
type.

24
The categories of this paper are: dg-ga
34
The categories of this paper are: chem-ph
28
The categories of this paper are: alg-geom
32
The categories of this paper are: atom-ph
18
The categories of this paper are: econ
21
The categories of this paper are: adap-org
5
The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an
0
The categories of this paper are: hep-ph
16
The categories of this paper are: stat
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas
33
The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex