Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Supersymmetric Intersecting D6-branes and Fluxes in Massive Type IIA
  String Theory   We study N=1 supersymmetric four-dimensional solutions of massive Type IIA
supergravity with intersecting D6-branes in the presence NS-NS three-form
fluxes. We derive N=1 supersymmetry conditions for the D6-brane and flux
configurations in an internal manifold $X_6$ and derive the intrinsic torsion
(or SU(3)-structure) related to the fluxes. In the absence of fluxes, N=1
supersymmetry implies that D6-branes wrap supersymmetric three-cycles of $X_6$
that intersect at angles of SU(3) rotations and the geometry is deformed by
SU(3)-structures. The presence of fluxes breaks the SU(3) structures to SU(2)
and the D6-branes intersect at angles of SU(2) rotations; non-zero mass
parameter corresponds to D8-branes which are orthogonal to the common cycle of
all D6-branes. The anomaly inflow indicates that the gauge theory on
intersecting (massive) D6-branes is not chiral.

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The categories of this paper are: q-bio
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The categories of this paper are: astro-ph
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The categories of this paper are: q-alg
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The categories of this paper are: alg-geom
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The categories of this paper are: solv-int
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The categories of this paper are: physics
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The categories of this paper are: nucl-ex
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The categories of this paper are: chao-dyn
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The categories of this paper are: dg-ga
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The categories of this paper are: gr-qc
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The categories of this paper are: chem-ph
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The categories of this paper are: stat
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The categories of this paper are: eess
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The categories of this paper are: math-ph
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The categories of this paper are: econ
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The categories of this paper are: math