Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Constraints on The Dark Energy Equation of State And The Deceleration
  Parameter From Recent Cosmic Observations   We study the constraints on dark energy equation of state $\omega^{X}$ and
the deceleration parameter $q$ from the recent observational data including
Hubble data and the cosmic microwave background (CMB) radiation by using a
model-independent deceleration parameter $q(z)=1/2-a/(1+z)^b$ and dark energy
equation of state $\omega^{X}=\omega_{0}+\omega_{1}z/(1+z)$ in the scope of
anisotropic Bianchi type I space-time. For the cases of Hubble dataset, CMB
data, and their combination, our results indicate that the constraints on
transition redshift $z_{\ast}$ are $0.62^{+1.45}_{-0.56}$,
$0.34^{+0.13}_{-0.06}$, and $0.60^{+0.20}_{-0.10}$ respectively.

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The categories of this paper are: acc-phys
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The categories of this paper are: hep-th
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The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
2
The categories of this paper are: math
10
The categories of this paper are: q-bio
34
The categories of this paper are: chem-ph
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The categories of this paper are: stat
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The categories of this paper are: comp-gas
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The categories of this paper are: solv-int
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The categories of this paper are: chao-dyn
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The categories of this paper are: nucl-th
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The categories of this paper are: cond-mat
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The categories of this paper are: eess
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The categories of this paper are: adap-org
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The categories of this paper are: q-alg