Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: PM = EM: Partially Massless Duality Invariance   In d=4 de Sitter space, novel conformally invariant photon-like theories
consistently couple to charged matter. We show that these higher spin, maximal
depth, partially massless systems enjoy a Maxwellian, "electric-magnetic"
duality.

14
The categories of this paper are: math-ph
12
The categories of this paper are: nucl-th
23
The categories of this paper are: solv-int
28
The categories of this paper are: alg-geom
0
The categories of this paper are: hep-ph
4
The categories of this paper are: cond-mat
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
34
The categories of this paper are: chem-ph
37
The categories of this paper are: supr-con
3
The categories of this paper are: physics
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs
25
The categories of this paper are: patt-sol