Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Finding msr of a given graph of at most seven vertices by giving vector
  representations   In this paper, we study the minimum rank among positive semidefinite matrices
with a given graph of at most seven vertices (msr) by giving vector
representations.

7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th
25
The categories of this paper are: patt-sol
4
The categories of this paper are: cond-mat
8
The categories of this paper are: hep-ex
1
The categories of this paper are: cs
11
The categories of this paper are: hep-lat
23
The categories of this paper are: solv-int
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
26
The categories of this paper are: bayes-an
19
The categories of this paper are: eess
29
The categories of this paper are: funct-an
28
The categories of this paper are: alg-geom
0
The categories of this paper are: hep-ph