Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Branes from Matrix Theory in PP-Wave Background   Based on the recently proposed action for Matrix theory describing the DLCQ M
theory in the maximally supersymmetric pp-wave background, we obtain the
supersymmetry algebra of supercharge density. Using supersymmetry
transformation rules for fermions, we identify BPS states with the central
charges in the supersymmetry algebra, which can be activated only in the large
N limit. They preserve some fraction of supersymmetries and correspond to
rotating transverse membranes and longitudinal five branes.

37
The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc
29
The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
8
The categories of this paper are: hep-ex
9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
33
The categories of this paper are: plasm-ph
14
The categories of this paper are: math-ph
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The categories of this paper are: adap-org
23
The categories of this paper are: solv-int
2
The categories of this paper are: math
30
The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg
24
The categories of this paper are: dg-ga