Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Degrees of Freedom Region of the $(M,N_1,N_2)$ MIMO Broadcast Channel
  with Partial CSIT: An Application of Sum-set Inequalities Based on Aligned
  Image Sets
4
The categories of this paper are: cond-mat
5
The categories of this paper are: gr-qc
17
The categories of this paper are: q-fin
18
The categories of this paper are: econ
9
The categories of this paper are: nlin
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th
19
The categories of this paper are: eess
3
The categories of this paper are: physics
32
The categories of this paper are: atom-ph
12
The categories of this paper are: nucl-th
33
The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph