Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Cosmic acceleration and crossing of $\omega=-1$ in non-minimal modified
  Gauss-Bonnet gravity   Modified Gauss-Bonnet, i.e, $f(G)$ gravity is a possible explanation of dark
energy. Late time cosmology for the $f(G)$ gravity non-minimally coupled with a
free massless scalar field have been investigated in Ref. [32]. In this paper
we generalize the work of Ref. [32] by including scalar potential in the matter
Lagrangian which is non-minimally coupled with modified Gauss-Bonnet gravity.
Also we obtain the conditions for having a much more amazing problem than the
acceleration of the universe, i.e: crossing of $\omega=-1$, in $f(G)$
non-minimally coupled with tachyonic Lagrangian.

28
The categories of this paper are: alg-geom
3
The categories of this paper are: physics
20
The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol
14
The categories of this paper are: math-ph
19
The categories of this paper are: eess
0
The categories of this paper are: hep-ph
11
The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
22
The categories of this paper are: chao-dyn
1
The categories of this paper are: cs