Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Non-singular solutions in multidimensional model with scalar fields and
  exponential potential   Using developed earlier our methods for multidimensional models
\cite{M1,M2,M3} a family of cosmological-type solutions in D-dimensional model
with two sets of scalar fields \vec{\phi} and \vec{\psi} and exponential
potential depending upon \vec{\phi} is considered. The solutions are defined on
a product of n Ricci-flat spaces. The fields from \vec{\phi} have positive
kinetic terms and \vec{\psi} are "phantom" fields with negative kinetic terms.
For vector coupling constant obeying 0< \vec{\lambda}^2 < (D-1)/(D-2) a
subclass of non-singular solutions is singled out. The solutions from this
subclass are regular for all values of synchronous "time" \tau \in (- \infty, +
\infty). For \vec{\lambda}^2 < 1/(D-2) we get an asymptotically accelerated and
isotropic expansion for large values of \tau.

15
The categories of this paper are: nucl-ex
10
The categories of this paper are: q-bio
37
The categories of this paper are: supr-con
36
The categories of this paper are: cmp-lg
2
The categories of this paper are: math
6
The categories of this paper are: astro-ph
0
The categories of this paper are: hep-ph
26
The categories of this paper are: bayes-an
29
The categories of this paper are: funct-an
16
The categories of this paper are: stat
35
The categories of this paper are: mtrl-th
4
The categories of this paper are: cond-mat
28
The categories of this paper are: alg-geom
3
The categories of this paper are: physics
11
The categories of this paper are: hep-lat
23
The categories of this paper are: solv-int