Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An analysis of the expansion acceleration of the Universe in the
  Interacting Holographic Dark Energy model   Holographic model is originated from Holographic principle. The equation of
state in Holographic model and Einstein's gravity with particle horizon can be
obtained as wD>-1/3 and cannot justify the expansion acceleration of the
Universe. But, by using the event horizon, this model can result in the
accelerating expansion in Einstein's gravity and Brans-Dicke cosmology. In this
context, we study the holographic model with apparent horizon satisfying the
acceleration expansion. We shall see, in the presence of interaction, phase
change and transition from decelerated state to accelerated state is possible.
This shows the sign of deceleration parameter.

11
The categories of this paper are: hep-lat
37
The categories of this paper are: supr-con
2
The categories of this paper are: math
21
The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci
9
The categories of this paper are: nlin
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
19
The categories of this paper are: eess
7
The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex