Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Role of multiband effects and electron-hole asymmetry in the
  superconductivity and normal state properties of
  Ba(Fe$_{1-x}$Co$_{x}$)$_{2}$As$_{2}$
9
The categories of this paper are: nlin
2
The categories of this paper are: math
14
The categories of this paper are: math-ph
7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
36
The categories of this paper are: cmp-lg
29
The categories of this paper are: funct-an
8
The categories of this paper are: hep-ex
1
The categories of this paper are: cs
33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
16
The categories of this paper are: stat
19
The categories of this paper are: eess
21
The categories of this paper are: adap-org
12
The categories of this paper are: nucl-th