Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the generating functions of a periodic infinite order linear
  recurrence   Let G be the space of generating functions of a periodic infinite order
linear recurrence. In this paper we provide an explicit procedure for computing
a basis of G.

29
The categories of this paper are: funct-an
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph
28
The categories of this paper are: alg-geom
5
The categories of this paper are: gr-qc
10
The categories of this paper are: q-bio
25
The categories of this paper are: patt-sol
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
19
The categories of this paper are: eess
14
The categories of this paper are: math-ph
17
The categories of this paper are: q-fin
11
The categories of this paper are: hep-lat
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con