Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nonsingular Universes in Gauss-Bonnet Gravity's Rainbow   In this paper, we will study the rainbow deformation of the FRW cosmology in
both Einstein gravity and Gauss-Bonnet gravity. We will demonstrate that the
singularity in the FRW cosmology can be removed because of the rainbow
deformation of the FRW metric. We will obtain the general constraints required
for the FRW cosmology to be free from singularities. It will be observed that
the inclusion of Gauss-Bonnet gravity can significantly change the constraints
required to obtain a nonsingular universes. We will use a rainbow functions
motivated from the hard spectra of gamma-ray bursts to deform the FRW
cosmology, and it will be explicitly demonstrated that such a deformation
removes the singularity in the FRW cosmology.

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The categories of this paper are: atom-ph
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The categories of this paper are: q-fin
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The categories of this paper are: alg-geom
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The categories of this paper are: econ
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The categories of this paper are: hep-ex
0
The categories of this paper are: hep-ph
4
The categories of this paper are: cond-mat
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The categories of this paper are: math-ph
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The categories of this paper are: plasm-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: nucl-th
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The categories of this paper are: q-bio
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The categories of this paper are: chem-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: adap-org
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The categories of this paper are: dg-ga