Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: AdS backgrounds from black hole horizons   We utilize the classification of IIB horizons with 5-form flux to present a
unified description for the geometry of AdS_n, n=3,5,7 solutions. In
particular, we show that all such backgrounds can be constructed from
8-dimensional 2-strong Calabi-Yau geometries with torsion which admit some
additional isometries. We explore the geometry of AdS_3 and AdS_5 solutions but
we do not find AdS_7 solutions.

18
The categories of this paper are: econ
14
The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys
9
The categories of this paper are: nlin
36
The categories of this paper are: cmp-lg
15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
34
The categories of this paper are: chem-ph
32
The categories of this paper are: atom-ph
17
The categories of this paper are: q-fin
3
The categories of this paper are: physics
33
The categories of this paper are: plasm-ph
28
The categories of this paper are: alg-geom
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn