Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Matrix commuting differential operators of rank 2   In this paper we propose a very effective method for constructing matrix
commuting differential operators of rank 2 and vector rank (2,2). We find new
matrix commuting differential operators L, M of orders 2 and 2g respectively.

11
The categories of this paper are: hep-lat
23
The categories of this paper are: solv-int
7
The categories of this paper are: hep-th
5
The categories of this paper are: gr-qc
19
The categories of this paper are: eess
13
The categories of this paper are: quant-ph
0
The categories of this paper are: hep-ph
4
The categories of this paper are: cond-mat
30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
18
The categories of this paper are: econ
20
The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph
17
The categories of this paper are: q-fin
15
The categories of this paper are: nucl-ex
8
The categories of this paper are: hep-ex