Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Asymptotic singular behaviour of inhomogeneous cosmologies in
  Einstein-Maxwell-dilaton-axion theory   We present the study of exact inhomogeneous cosmological solutions to a
four-dimensional low energy limit of string theory containing non-minimal
interacting electromagnetic, dilaton and axion fields. We analyze
Einstein-Rosen solutions of Einstein-Maxwell-dilaton-axion equations and show,
by explicitly taken the asymptotic limits, that they have asymptotically
velocity-term dominated (AVTD) singularities.

19
The categories of this paper are: eess
3
The categories of this paper are: physics
2
The categories of this paper are: math
9
The categories of this paper are: nlin
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
35
The categories of this paper are: mtrl-th
16
The categories of this paper are: stat
31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
20
The categories of this paper are: acc-phys
25
The categories of this paper are: patt-sol
6
The categories of this paper are: astro-ph
18
The categories of this paper are: econ
23
The categories of this paper are: solv-int
17
The categories of this paper are: q-fin