Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Regular non-twisting S-branes   We construct a family of time and angular dependent, regular S-brane
solutions which corresponds to a simple analytical continuation of the
Zipoy-Voorhees 4-dimensional vacuum spacetime. The solutions are asymptotically
flat and turn out to be free of singularities without requiring a twist in
space. They can be considered as the simplest non-singular generalization of
the singular S0-brane solution. We analyze the properties of a representative
of this family of solutions and show that it resembles to some extent the
asymptotic properties of the regular Kerr S-brane. The R-symmetry corresponds,
however, to the general Lorentzian symmetry. Several generalizations of this
regular solution are derived which include a charged S-brane and an additional
dilatonic field.

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The categories of this paper are: patt-sol
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg
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The categories of this paper are: solv-int
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The categories of this paper are: quant-ph
29
The categories of this paper are: funct-an
10
The categories of this paper are: q-bio
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The categories of this paper are: q-fin
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The categories of this paper are: cmp-lg
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The categories of this paper are: nlin
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The categories of this paper are: cs
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The categories of this paper are: stat
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The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph