Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the number of conjugacy classes of a primitive permutation group with
  nonabelian socle   Let $G$ be a primitive permutation group of degree $n$ with nonabelian socle,
and let $k(G)$ be the number of conjugacy classes of $G$. We prove that either
$k(G)<n/2$ and $k(G)=o(n)$ as $n\rightarrow \infty$, or $G$ belongs to explicit
families of examples.

27
The categories of this paper are: comp-gas
12
The categories of this paper are: nucl-th
23
The categories of this paper are: solv-int
4
The categories of this paper are: cond-mat
16
The categories of this paper are: stat
19
The categories of this paper are: eess
6
The categories of this paper are: astro-ph
11
The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
1
The categories of this paper are: cs
28
The categories of this paper are: alg-geom
18
The categories of this paper are: econ
21
The categories of this paper are: adap-org
24
The categories of this paper are: dg-ga