Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: All 1/2 BPS solutions of IIB supergravity with SO(4) x SO(4) isometry   In hep-th/0409174, Lin, Lunin and Maldacena constructed a set of regular 1/2
BPS geometries in IIB theory. These remarkable `bubbling AdS' geometries have a
natural interpretation as duals of chiral primary operators with weight Delta=J
in N=4 super-Yang Mills theory. Although these geometries have been assumed to
be complete, from a purely supergravity point of view, additional 1/2 BPS
configurations may potentially exist with a preferred null isometry. We explore
this possibility and prove that the only additional class of 1/2 BPS solutions
with SO(4) x SO(4) isometry are the familiar IIB pp-waves.

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The categories of this paper are: acc-phys
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The categories of this paper are: physics
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The categories of this paper are: solv-int
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The categories of this paper are: mtrl-th
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The categories of this paper are: math-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: econ
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The categories of this paper are: nucl-th
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The categories of this paper are: funct-an
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The categories of this paper are: astro-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: supr-con
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The categories of this paper are: gr-qc