Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Black holes without spacelike singularities   It is shown that for small, spherically symmetric perturbations of
asymptotically flat two-ended Reissner-Nordstr\"om data for the
Einstein-Maxwell-real scalar field system, the boundary of the dynamic
spacetime which evolves is globally represented by a bifurcate null
hypersurface across which the metric extends continuously. Under additional
assumptions, it is shown that the Hawking mass blows up identically along this
bifurcate null hypersurface, and thus the metric cannot be extended twice
differentiably, in fact, cannot be extended in a weaker sense characterized at
the level of the Christoffel symbols. The proof combines estimates obtained in
previous work with an elementary Cauchy stability argument. There are no
restrictions on the size of the support of the scalar field, and the result
applies to both the future and past boundary of spacetime. In particular, it
follows that for an open set in the moduli space of solutions around
Reissner-Nordstr\"om, there is no spacelike component of either the future or
the past singularity.

10
The categories of this paper are: q-bio
25
The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex
0
The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
32
The categories of this paper are: atom-ph
3
The categories of this paper are: physics
27
The categories of this paper are: comp-gas
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The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
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The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph
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The categories of this paper are: econ
23
The categories of this paper are: solv-int