Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Partial Order on Bipartite Graphs with n Vertices   The paper examines a partial order on bipartite graphs (X1, X2, E) with n
vertices, X1UX2={1,2,...,n}. This partial order is a natural partial order of
subobjects of an object in a triangular category with bipartite graphs as
morphisms.

10
The categories of this paper are: q-bio
9
The categories of this paper are: nlin
2
The categories of this paper are: math
6
The categories of this paper are: astro-ph
23
The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
8
The categories of this paper are: hep-ex
14
The categories of this paper are: math-ph
29
The categories of this paper are: funct-an
5
The categories of this paper are: gr-qc
3
The categories of this paper are: physics
28
The categories of this paper are: alg-geom
36
The categories of this paper are: cmp-lg
7
The categories of this paper are: hep-th
33
The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph