Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Stable accelerating universe with no hair   After reviewing the main characteristics of the spacetime of accelerating
universes driven by a quintessence scalar field with constant equation of state
$\omega$, we investigate in this paper the classical stability of such spaces
to cosmological perturbations, particularizing in the case of a closed geometry
and equation of state $\omega=-2/3$. We conclude that this space is classically
stable and conjecture that accelerating universes driven by quintessential
fields have "no-hair".

6
The categories of this paper are: astro-ph
9
The categories of this paper are: nlin
13
The categories of this paper are: quant-ph
5
The categories of this paper are: gr-qc
1
The categories of this paper are: cs
19
The categories of this paper are: eess
10
The categories of this paper are: q-bio
26
The categories of this paper are: bayes-an
22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
3
The categories of this paper are: physics
28
The categories of this paper are: alg-geom
29
The categories of this paper are: funct-an
4
The categories of this paper are: cond-mat
35
The categories of this paper are: mtrl-th
33
The categories of this paper are: plasm-ph