Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Finiteness properties of congruence classes of infinite matrices   We look at spaces of infinite-by-infinite matrices, and consider closed
subsets that are stable under simultaneous row and column operations. We prove
that up to symmetry, any of these closed subsets is defined by finitely many
equations.

30
The categories of this paper are: q-alg
5
The categories of this paper are: gr-qc
6
The categories of this paper are: astro-ph
8
The categories of this paper are: hep-ex
34
The categories of this paper are: chem-ph
19
The categories of this paper are: eess
1
The categories of this paper are: cs
32
The categories of this paper are: atom-ph
0
The categories of this paper are: hep-ph
20
The categories of this paper are: acc-phys
11
The categories of this paper are: hep-lat
14
The categories of this paper are: math-ph
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom