Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Sigma model formulation of the type II string theory in the
  $Ads_5\times S_5$ backgrounds with Ramond-Ramond Flux   A sigma model action is constructed for the type II string in the
$Ads_5\times S_5$ back grounds with Ramond-Ramond flux.

28
The categories of this paper are: alg-geom
0
The categories of this paper are: hep-ph
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
37
The categories of this paper are: supr-con
4
The categories of this paper are: cond-mat
22
The categories of this paper are: chao-dyn
33
The categories of this paper are: plasm-ph
13
The categories of this paper are: quant-ph
12
The categories of this paper are: nucl-th
26
The categories of this paper are: bayes-an
18
The categories of this paper are: econ
16
The categories of this paper are: stat
24
The categories of this paper are: dg-ga
31
The categories of this paper are: ao-sci