Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A New Duality Symmetry in String Theory   We consider the conformal gauging of non-abelian groups. In such cases there
are inequivalent ways of gauging (generalizing the axial and vector cases for
abelian groups) corresponding to external automorphisms of the group. Different
$\s$-models obtained this way correspond to the same conformal field theory. We
use the method of quotients to formulate this equivalence as a new duality
symmetry.

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The categories of this paper are: nucl-th
5
The categories of this paper are: gr-qc
32
The categories of this paper are: atom-ph
6
The categories of this paper are: astro-ph
13
The categories of this paper are: quant-ph
26
The categories of this paper are: bayes-an
2
The categories of this paper are: math
19
The categories of this paper are: eess
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The categories of this paper are: hep-ex
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The categories of this paper are: ao-sci
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The categories of this paper are: solv-int
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The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
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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