Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: 2-field model of dark energy with canonical and non-canonical kinetic
  terms   We generalize quintom to include the tachyonic kinetic term along with the
classical one. For such a model we obtain the expressions for energy density
and pressure. For the spatially flat, homogeneous and isotropic Universe with
Friedmann-Robertson-Walker metric of 4-space we derive the equations of motion
for the fields. We discuss in detail the reconstruction of the scalar fields
potential $U(\phi,\xi)$. Such a reconstruction cannot be done unambiguously, so
we consider 3 simplest forms of $U(\phi,\xi)$: the product of $\Phi(\phi)$ and
$\Xi(\xi)$, the sum of $\Phi(\phi)$ and $\Xi(\xi)$ and this sum to the
$\kappa$th power.

28
The categories of this paper are: alg-geom
2
The categories of this paper are: math
14
The categories of this paper are: math-ph
4
The categories of this paper are: cond-mat
15
The categories of this paper are: nucl-ex
22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
8
The categories of this paper are: hep-ex
23
The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
26
The categories of this paper are: bayes-an
17
The categories of this paper are: q-fin
24
The categories of this paper are: dg-ga