Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Asymptotic Properties of a Supposedly Regular (Dirac-Born-Infeld)
  Modification of General Relativity   We apply the dynamical systems tools to study the asymptotic properties of a
cosmological model based on a non-linear modification of General Relativity in
which the standard Einstein-Hilbert action is replaced by one of
Dirac-Born-Infeld type. It is shown that the dynamics of this model is
extremely rich: there are found equilibrium points in the phase space that can
be associated with matter-dominated, matter-curvature scaling, de Sitter, and
even phantom-like solutions. Depending on the value of the overall parameters
the dynamics in phase space can show multi-attractor structure into the future
(multiple future attractors may co-exist). This is a consequence of
bifurcations in control parameter space, showing strong dependence of the
model's dynamical properties on the free parameters. Contrary to what is
expected from non-linear modifications of general relativity of this kind,
removal of the initial spacetime singularity is not a generic feature of the
corresponding cosmological model. Instead, the starting point of the cosmic
dynamics -- the past attractor in the phase space -- is a state of infinitely
large value of the Hubble rate squared, usually associated with the big bang
singularity.

30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
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The categories of this paper are: funct-an
8
The categories of this paper are: hep-ex
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The categories of this paper are: quant-ph
21
The categories of this paper are: adap-org
4
The categories of this paper are: cond-mat
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The categories of this paper are: acc-phys
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The categories of this paper are: chem-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: q-fin
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The categories of this paper are: supr-con
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The categories of this paper are: patt-sol
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The categories of this paper are: bayes-an
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The categories of this paper are: atom-ph
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The categories of this paper are: dg-ga