Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Strings on $\text{AdS}_3 \times \text{S}^3 \times \text{S}^3 \times
  \text{S}^1$   String theory on ${\rm AdS}_3 \times {\rm S}^3 \times {\rm S}^3 \times {\rm
S}^1$ with pure NS-NS flux and minimal flux through one of the two ${\rm
S}^3$'s is studied from a world-sheet perspective. It is shown that the
spacetime spectrum, as well as the algebra of spectrum generating operators,
matches precisely that of the symmetric orbifold of ${\rm S}^3\times
\mathrm{S}^1$ in the large $N$ limit. This gives strong support for the
proposal that these two descriptions are exactly dual to one another.

3
The categories of this paper are: physics
25
The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
10
The categories of this paper are: q-bio
17
The categories of this paper are: q-fin
37
The categories of this paper are: supr-con
33
The categories of this paper are: plasm-ph
27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
2
The categories of this paper are: math
12
The categories of this paper are: nucl-th