Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Electric/magnetic duality and its stringy origins   We review electric/magnetic duality in $N=4$ (and certain $N=2$) globally
supersymmetric gauge theories and show how this duality, which relates strong
to weak coupling, follows as a consequence of a string/string duality. Black
holes, eleven dimensions and supermembranes also have a part to play in the big
picture.

21
The categories of this paper are: adap-org
4
The categories of this paper are: cond-mat
28
The categories of this paper are: alg-geom
16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph
9
The categories of this paper are: nlin
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
20
The categories of this paper are: acc-phys
17
The categories of this paper are: q-fin
19
The categories of this paper are: eess
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
13
The categories of this paper are: quant-ph
34
The categories of this paper are: chem-ph
12
The categories of this paper are: nucl-th