Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Brane-bulk energy exchange and cosmological acceleration   The consequences for the brane cosmological evolution of energy exchange
between the brane and the bulk are analyzed. A rich variety of brane
cosmologies is obtained, depending on the precise mechanism of energy transfer,
the equation of state of brane-matter and the spatial topology. An accelerating
era is generically a feature of the solutions.
  (Prepared for 36th International Symposium Ahrenshoop on the Theory of
Elementary Particles: Recent Developments in String M Theory and Field Theory,
Wernsdorf, Germany, 26-30 Aug 2003.)

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The categories of this paper are: atom-ph
15
The categories of this paper are: nucl-ex
11
The categories of this paper are: hep-lat
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
25
The categories of this paper are: patt-sol
4
The categories of this paper are: cond-mat
16
The categories of this paper are: stat
1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys
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The categories of this paper are: chem-ph
37
The categories of this paper are: supr-con
13
The categories of this paper are: quant-ph
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The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
2
The categories of this paper are: math