Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Supersymmetry, G-flux and Spin(7) manifolds   In this note we study warped compactifications of M-theory on manifolds of
Spin(7) holonomy in the presence of background 4-form flux. The explicit form
of the superpotential can be given in terms of the self -dual Cayley
calibration on the Spin(7) manifold, in agreement with the general formula
propsed in hep-th/9911011.

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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: chao-dyn
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The categories of this paper are: plasm-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: cs
0
The categories of this paper are: hep-ph
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The categories of this paper are: nlin
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The categories of this paper are: atom-ph
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The categories of this paper are: math-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: cond-mat
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The categories of this paper are: hep-lat
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The categories of this paper are: q-alg
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The categories of this paper are: patt-sol
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The categories of this paper are: acc-phys