Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Exact half-BPS string-junction solutions in six-dimensional supergravity   We construct SO(2,1) x SO(3)-invariant half-BPS solutions in six-dimensional
(0,4) supergravity with m tensor multiplets. The space-time manifold of each
one of these solutions consists of an AdS_2 x S^2 warped over a Riemann surface
Sigma with boundary. The most general local solution is parametrized by one
real harmonic function, and m+2 holomorphic functions which are subject to a
quadratic constraint and a hermitian inequality, both of which are manifestly
SO(2,m) invariant. Imposing suitable conditions on these harmonic and
holomorphic functions, we construct globally regular supergravity solutions
with N distinct AdS_3 x S^3 asymptotic regions and contractible Sigma. These
solutions have an intricate moduli space, whose dimension equals 2(m+1)N -m-2
and matches the counting of three-form charge vectors and un-attracted scalars
of the tensor multiplet. Exact explicit formulas for all supergravity fields
are obtained in terms of the moduli. Our solutions give the near-horizon
geometries for junctions of N self-dual strings in six dimensions, and are
holographic duals to CFTs defined on N half-planes which share a common
interface line. For m=5, the solutions lift to quarter-BPS solutions for
six-dimensional (4,4) supergravity.

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The categories of this paper are: physics
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The categories of this paper are: eess
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The categories of this paper are: gr-qc
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The categories of this paper are: funct-an
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The categories of this paper are: solv-int
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The categories of this paper are: comp-gas
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The categories of this paper are: hep-ph
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The categories of this paper are: stat
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The categories of this paper are: mtrl-th
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The categories of this paper are: astro-ph
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The categories of this paper are: cs
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The categories of this paper are: acc-phys
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The categories of this paper are: chem-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: dg-ga
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The categories of this paper are: patt-sol