Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Matrix String Theory on pp-waves   After a brief review on Matrix String Theory on flat backgrounds, we
formulate matrix string models on different pp-wave backgrounds. This will be
done both in the case of constant and variable RR background flux for certain
exact string geometries. We exhibit the non--perturbative representation of
string interaction and show how the eigenvalue tunneling drives the WKB
expansion to give the usual perturbative string interaction also in
supersymmetric pp-wave background cases.

12
The categories of this paper are: nucl-th
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The categories of this paper are: hep-lat
13
The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
17
The categories of this paper are: q-fin
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The categories of this paper are: acc-phys
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The categories of this paper are: alg-geom
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The categories of this paper are: dg-ga
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The categories of this paper are: cmp-lg
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The categories of this paper are: gr-qc
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The categories of this paper are: math
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The categories of this paper are: hep-ex
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The categories of this paper are: stat
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio