Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A representation theoretic approach to Kohnen's plus space of modular
  forms of half integral weight   In this paper we develop representation theory of the two fold central
extension of SL(2) over the field of 2-adic numbers. As a consequence, we
obtain a local Shimura correspondence between the two fold central extension of
SL(2) and the linear group PGL(2), which we show to be compatible with the
global Shimura correspondence at p=2.

1
The categories of this paper are: cs
19
The categories of this paper are: eess
13
The categories of this paper are: quant-ph
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
4
The categories of this paper are: cond-mat
3
The categories of this paper are: physics
11
The categories of this paper are: hep-lat
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
10
The categories of this paper are: q-bio