Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Curved branes and cosmological (a,b)-models   We construct p-brane solutions with non-trivial world volume metrics and show
that applied to supergravity theories, they will lead to threshold BPS bound
states of intersecting solutions. However applied to certain specific values of
the couplings in cosmological (a,b)-models non-trivial solutions can be
constructed.

13
The categories of this paper are: quant-ph
5
The categories of this paper are: gr-qc
4
The categories of this paper are: cond-mat
31
The categories of this paper are: ao-sci
9
The categories of this paper are: nlin
33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
36
The categories of this paper are: cmp-lg
29
The categories of this paper are: funct-an
25
The categories of this paper are: patt-sol
21
The categories of this paper are: adap-org
35
The categories of this paper are: mtrl-th
30
The categories of this paper are: q-alg
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
32
The categories of this paper are: atom-ph