Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Connections and curvings on lifting bundle gerbes   We construct a connection and a curving on a bundle gerbe associated with
lifting a structure group of a principal bundle to a central extension. The
construction is based on certain structures on the bundle, i.e. connections and
splittings. The Deligne cohomology class of the lifting bundle gerbe with the
connection and with the curving coincides with the obstruction class of the
lifting problem with these structures.

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The categories of this paper are: plasm-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: econ
6
The categories of this paper are: astro-ph
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The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
3
The categories of this paper are: physics
5
The categories of this paper are: gr-qc
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The categories of this paper are: chao-dyn
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The categories of this paper are: adap-org
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The categories of this paper are: cmp-lg
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The categories of this paper are: hep-th
1
The categories of this paper are: cs
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The categories of this paper are: patt-sol
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The categories of this paper are: dg-ga
4
The categories of this paper are: cond-mat