Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Crossing of phantom divide line in model \\of interacting Tsallis
  holographic dark energy   We consider a Tsallis holographic dark energy model with interaction between
dark energy and matter. The density of dark energy is taken as $\rho_d \sim
3C^2/L^{4-2\gamma}$, where $C$, $\gamma$ are constants. The event horizon is
chosen as the characteristic scale $L$. The cosmological dynamics of the
universe are analyzed, with special attention paid to the possibility of
crossing the phantom line $w_{eff}=-1$. It is shown that for certain values of
parameters this may occur not only once, but also twice.

29
The categories of this paper are: funct-an
2
The categories of this paper are: math
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
24
The categories of this paper are: dg-ga
12
The categories of this paper are: nucl-th
27
The categories of this paper are: comp-gas
34
The categories of this paper are: chem-ph
17
The categories of this paper are: q-fin
28
The categories of this paper are: alg-geom
37
The categories of this paper are: supr-con
9
The categories of this paper are: nlin
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
16
The categories of this paper are: stat
35
The categories of this paper are: mtrl-th