Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: (Anti-) de Sitter Electrically Charged Black Hole Solutions in
  Higher-Derivative Gravity   In this paper, static electrically charged black hole solutions with
cosmological constant are investigated in an Einstein-Hilbert theory of gravity
with additional quadratic curvature terms. Beside the analytic Schwarzschild
(Anti-) de Sitter solutions, non-Schwarzschild (Anti-) de Sitter solutions are
also obtained numerically by employing the shooting method. The results show
that there exist two groups of asymptotically (Anti-) de Sitter spacetimes for
both charged and uncharged black holes. In particular, it was found that for
uncharged black holes the first group can be reduced to the Schwarzschild
(Anti-) de Sitter solution, while the second group is intrinsically different
from a Schwarzschild (Anti-) de Sitter solution even when the charge and the
cosmological constant become zero.

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The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
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The categories of this paper are: bayes-an
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The categories of this paper are: funct-an
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The categories of this paper are: alg-geom
11
The categories of this paper are: hep-lat
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The categories of this paper are: solv-int
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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: atom-ph
13
The categories of this paper are: quant-ph
6
The categories of this paper are: astro-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: econ
4
The categories of this paper are: cond-mat