Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Computing $S$-unit groups of orders   Based on the general strategy described by Borel and Serre and the Voronoi
algorithm for computing unit groups of orders we present an algorithm for
finding presentations of $S$-unit groups of orders. The algorithm is then used
for some investigations concerning the congruence subgroup property.

26
The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ
29
The categories of this paper are: funct-an
28
The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
5
The categories of this paper are: gr-qc
19
The categories of this paper are: eess
4
The categories of this paper are: cond-mat
25
The categories of this paper are: patt-sol
1
The categories of this paper are: cs
0
The categories of this paper are: hep-ph
10
The categories of this paper are: q-bio
27
The categories of this paper are: comp-gas
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat