Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Electrically-Charged Lifshitz Spacetimes, and Hyperscaling Violations   Electrically-charged Lifshitz spacetimes are hard to come by. In this paper,
we construct a class of such solutions in five dimensional Einstein gravity
coupled to Maxwell and $SU(2)$ Yang-Mills fields. The solutions are
electrically-charged under the Maxwell field, whose equation is sourced by the
Yang-Mills instanton(-like) configuration living in the hyperbolic four-space
of the Lifshitz spacetime. We then introduce a dilaton and construct charged
and colored Lifshitz spacetimes with hyperscaling violations. We obtain a class
of exact Lifshitz black holes. We also perform similar constructions in four
dimensions.

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The categories of this paper are: quant-ph
1
The categories of this paper are: cs
6
The categories of this paper are: astro-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: econ
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The categories of this paper are: funct-an
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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: atom-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-lat
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The categories of this paper are: eess
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The categories of this paper are: cmp-lg
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The categories of this paper are: math
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The categories of this paper are: hep-ex
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The categories of this paper are: nucl-ex