Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Exact black hole formation in three dimensions   We consider three dimensional Einstein gravity non-minimally coupled to a
real scalar field with a self-interacting scalar potential and present the
exact black hole formation in three dimensions. Firstly we obtain an exact
time-dependent spherically symmetric solution describing the gravitational
collapse to a scalar black hole at the infinite time, i.e. in the static limit.
The solution can only be asymptotically AdS because of the No-Go theorem in
three dimensions which is resulted from the existence of a smooth black hole
horizon. Then we analyze their geometric properties and properties of the time
evolution. We also get the exact time-dependent solution in the minimal
coupling model after taking a conformal transformation.

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The categories of this paper are: q-alg
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The categories of this paper are: chao-dyn
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The categories of this paper are: cond-mat
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The categories of this paper are: ao-sci
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The categories of this paper are: atom-ph
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The categories of this paper are: stat
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The categories of this paper are: supr-con
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The categories of this paper are: comp-gas
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The categories of this paper are: econ
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The categories of this paper are: hep-lat
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The categories of this paper are: dg-ga
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The categories of this paper are: math-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: adap-org
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The categories of this paper are: alg-geom
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The categories of this paper are: eess