Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hyperfiniteness of boundary actions of hyperbolic groups   We prove that for every finitely generated hyperbolic group $G$, the action
of $G$ on its Gromov boundary induces a hyperfinite equivalence relation.

16
The categories of this paper are: stat
22
The categories of this paper are: chao-dyn
4
The categories of this paper are: cond-mat
20
The categories of this paper are: acc-phys
36
The categories of this paper are: cmp-lg
28
The categories of this paper are: alg-geom
7
The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
24
The categories of this paper are: dg-ga
5
The categories of this paper are: gr-qc
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th
11
The categories of this paper are: hep-lat
1
The categories of this paper are: cs