Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Pairs of equiperimeter and equiareal triangles whose sides are perfect
  squares   In this paper we consider the problem of finding pairs of triangles whose
sides are perfect squares of integers, and which have a common perimeter and
common area. We find two such pairs of triangles, and prove that there exist
infinitely many pairs of triangles with the specified properties.

21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
10
The categories of this paper are: q-bio
9
The categories of this paper are: nlin
1
The categories of this paper are: cs
23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
18
The categories of this paper are: econ
13
The categories of this paper are: quant-ph
14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg
34
The categories of this paper are: chem-ph
8
The categories of this paper are: hep-ex
29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas