Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Polynomial First Order Action for the Dirichlet 3-brane   A new first order action for type IIB Dirichlet 3-brane is proposed. Its form
is inspired by the superfield equations of motion obtained recently from the
generalized action principle. The action involves auxiliary symmetric spin
tensor fields. It seems promising for a reformulation of the generalized action
in a structure most adequate for investigating the extrinsic geometry of the
super-3- brane, but also for further studies of string dualities.

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The categories of this paper are: gr-qc
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The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
10
The categories of this paper are: q-bio
16
The categories of this paper are: stat
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: solv-int
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The categories of this paper are: comp-gas
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The categories of this paper are: chem-ph
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The categories of this paper are: cs
29
The categories of this paper are: funct-an
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The categories of this paper are: adap-org
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The categories of this paper are: math-ph