Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the oscillations and future asymptotics of locally rotationally
  symmetric Bianchi type III cosmologies with a massive scalar field   We analyse spatially homogenous cosmological models of locally rotationally
symmetric Bianchi type III with a massive scalar field as matter model. Our
main result concerns the future asymptotics of these spacetimes and gives the
dominant time behaviour of the metric and the scalar field for all solutions
for late times. This metric is forever expanding in all directions, however in
one spatial direction only at a logarithmic rate, while at a power-law rate in
the other two. Although the energy density goes to zero, it is matter dominated
in the sense that the metric components differ qualitatively from the
corresponding vacuum future asymptotics.
  Our results rely on a conjecture for which we give strong analytical and
numerical support. For this we apply methods from the theory of averaging in
nonlinear dynamical systems. This allows us to control the oscillations
entering the system through the scalar field by the Klein-Gordon equation in a
perturbative approach.

18
The categories of this paper are: econ
4
The categories of this paper are: cond-mat
32
The categories of this paper are: atom-ph
19
The categories of this paper are: eess
30
The categories of this paper are: q-alg
20
The categories of this paper are: acc-phys
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
28
The categories of this paper are: alg-geom
6
The categories of this paper are: astro-ph
27
The categories of this paper are: comp-gas
33
The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol