Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Thermodynamics in Little Rip cosmology in the framework of a type of
  f(R,T) gravity   Cosmological reconstruction of Little Rip model in $f(R, T)$ gravity is
investigated, where $R$ is the curvature scalar and $T$ the trace of the energy
momentum tensor. The model perfectly reproduces the present stage of the
universe, characterized by the $\Lambda CDM$ model, without singularity at
future finite-time (without the Big Rip). The input parameters are determined
according to Supernovae Cosmology data and perfectly fit with the WMAP around
the Little Rip. Moreover, the thermodynamics is considered in this Little Rip
cosmology and it is illustrated that the second law of thermodynamics is always
satisfied around the Little Rip universe for the temperature inside the horizon
being the same as that of the apparent horizon. Moreover, we show the existence
of a stable fixed point in the Little Rip universe which confirms that this is
actually a late-time attractor in the phantom-dominated universe. The linear
perturbation analysis is performed around the critical points, showing that the
Little Rip model obtained is stable.

37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
23
The categories of this paper are: solv-int
20
The categories of this paper are: acc-phys
35
The categories of this paper are: mtrl-th
16
The categories of this paper are: stat
13
The categories of this paper are: quant-ph
17
The categories of this paper are: q-fin
7
The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom
1
The categories of this paper are: cs
27
The categories of this paper are: comp-gas
21
The categories of this paper are: adap-org
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
32
The categories of this paper are: atom-ph