Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A note on sign of a self-dual representation   D. Prasad showed that the sign of a self-dual representation of a finite or
$p$-adic reductive group is often detected by a central element. We study the
extension of his results to some more general situations and make some
observations about the consequences of his results.

10
The categories of this paper are: q-bio
36
The categories of this paper are: cmp-lg
22
The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph
17
The categories of this paper are: q-fin
24
The categories of this paper are: dg-ga
29
The categories of this paper are: funct-an
4
The categories of this paper are: cond-mat
1
The categories of this paper are: cs
28
The categories of this paper are: alg-geom
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph
9
The categories of this paper are: nlin
0
The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph