Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Bouncing cosmology in an Extended Theory of Gravity   We have investigated some bouncing models in the framework of an extended
gravity theory where the usual Ricci scalar in the gravitational action is
replaced by a sum of the Ricci scalar and a term proportional to the trace of
the energy momentum tensor. The dynamical parameters of the model are derived
in most general manner. We considered two bouncing scenarios through an
exponential and a power law scale factor. The non singular bouncing models also
favour a late time cosmic speed up phenomenon. The dynamical behaviour of the
equation of state parameter is studied for the models. It is observed that,
near the bounce, the dynamics is substantially affected by the coupling
parameter of the modified gravity theory as compared to the parameters of the
bouncing scale factors.

14
The categories of this paper are: math-ph
1
The categories of this paper are: cs
32
The categories of this paper are: atom-ph
12
The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph
3
The categories of this paper are: physics
10
The categories of this paper are: q-bio
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
29
The categories of this paper are: funct-an
17
The categories of this paper are: q-fin
7
The categories of this paper are: hep-th
33
The categories of this paper are: plasm-ph
24
The categories of this paper are: dg-ga
15
The categories of this paper are: nucl-ex
19
The categories of this paper are: eess