Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Relative hyperbolicity and right-angled Coxeter groups   We show that right-angled Coxeter groups are relatively hyperbolic in the
sense defined by Farb, relative to a natural collection of rank-2 parabolic
subgroups.

13
The categories of this paper are: quant-ph
25
The categories of this paper are: patt-sol
37
The categories of this paper are: supr-con
19
The categories of this paper are: eess
6
The categories of this paper are: astro-ph
4
The categories of this paper are: cond-mat
9
The categories of this paper are: nlin
29
The categories of this paper are: funct-an
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
21
The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom
27
The categories of this paper are: comp-gas
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
1
The categories of this paper are: cs