Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Continuous matter creation and the acceleration of the universe: a
  replay   In a recent note (arXiv:1012.5069), the investigation performed by the
present authors on the evolution of density fluctuations in an accelerated
universe including matter creation was criticized. The criticism is based on
the fact that the Newtonian background is not "accelerating", invalidating the
conclusions of the linear analysis. We show that our linear equations describe
adequately an accelerating universe in which the pressure associated to the
creation process is constant, a model equivalent to the $\Lambda$CDM cosmology.
Thus, our previous conclusions remain unchanged.

18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
33
The categories of this paper are: plasm-ph
5
The categories of this paper are: gr-qc
28
The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
22
The categories of this paper are: chao-dyn
26
The categories of this paper are: bayes-an
13
The categories of this paper are: quant-ph
32
The categories of this paper are: atom-ph
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
2
The categories of this paper are: math