Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Equivalence of Geometric Engineering and Hanany-Witten via Fractional
  Branes   We present an explicit relation between the Hanany-Witten and Geometric
Engineering approaches of realising gauge theories in string theory. The last
piece in the puzzle is a T-duality relating arbitrary Hanany-Witten setups and
fractional branes.

33
The categories of this paper are: plasm-ph
34
The categories of this paper are: chem-ph
0
The categories of this paper are: hep-ph
21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
27
The categories of this paper are: comp-gas
6
The categories of this paper are: astro-ph
10
The categories of this paper are: q-bio
14
The categories of this paper are: math-ph
3
The categories of this paper are: physics
19
The categories of this paper are: eess
18
The categories of this paper are: econ
1
The categories of this paper are: cs
32
The categories of this paper are: atom-ph
22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat