Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Multi-Centered First Order Formalism   We propose a first order formalism for multi-centered black holes with flat
tree-dimensional base-space, within the stu model of N=2, D=4 ungauged
Maxwell-Einstein supergravity. This provides a unified description of first
order flows of this universal sector of all models with a symmetric scalar
manifold which can be obtained by dimensional reduction from five dimensions.
We develop a D=3 Cartesian formalism which suitably extends the definition of
central and matter charges, as well as of black hole effective potential and
first order "fake" superpotential, in order to deal with not necessarily
axisimmetric solutions, and thus with multi-centered and/or (under-)rotating
extremal black holes. We derive general first order flow equations for
composite non-BPS and almost BPS classes, and we analyze some of their
solutions, retrieving various single-centered (static or under-rotating) and
multi-centered known systems. As in the t^3 model, the almost BPS class turns
out to split into two general branches, and the well known almost BPS system is
shown to be a particular solution of the second branch.

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The categories of this paper are: dg-ga
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The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
13
The categories of this paper are: quant-ph
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The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
29
The categories of this paper are: funct-an
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The categories of this paper are: nucl-th
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The categories of this paper are: bayes-an
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The categories of this paper are: atom-ph
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The categories of this paper are: eess
3
The categories of this paper are: physics
1
The categories of this paper are: cs
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The categories of this paper are: supr-con
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The categories of this paper are: chao-dyn
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The categories of this paper are: comp-gas