Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Generalized Holonomy of Supergravities with 8 Real Supercharges   We show that the generalized holonomy groups of ungauged supergravity
theories with 8 real supercharges must be contained in SL(2-\nu,H)\ltimes{\nu
H^{2-\nu}}\subseteq SL(2,H), where SL(2,H) is the generalized structure group.
Here n=4\nu is the number of preserved supersymmetries, so the allowed values
are limited to n=0,4,8. In particular, solutions of ungauged supergravities in
four, five and six dimensions are examined and found to explicitly follow this
pattern. We also argue that the G-structure has to be a subgroup of this
generalized holonomy group, which may provide a possible classification for
supergravity vacua with respect to the number of supercharges.

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The categories of this paper are: ao-sci
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
2
The categories of this paper are: math
8
The categories of this paper are: hep-ex
10
The categories of this paper are: q-bio
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The categories of this paper are: solv-int
3
The categories of this paper are: physics
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The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex
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The categories of this paper are: mtrl-th
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The categories of this paper are: patt-sol
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The categories of this paper are: comp-gas
12
The categories of this paper are: nucl-th
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The categories of this paper are: chao-dyn
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The categories of this paper are: quant-ph