Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: There is no coincidence after all!   We show that if Dark Matter is made up of light bosons, they form a
Bose-Einstein condensate in the early Universe. This in turn naturally induces
a Dark Energy of approximately equal density and exerting negative
pressure.This explains the so-called coincidence problem.

18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
28
The categories of this paper are: alg-geom
1
The categories of this paper are: cs
29
The categories of this paper are: funct-an
2
The categories of this paper are: math
24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
10
The categories of this paper are: q-bio
21
The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
15
The categories of this paper are: nucl-ex
26
The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics