Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Diffeomorphisms of 7-Manifolds with Coclosed G_2-Structure   We introduce coG_2-vector fields, coRochesterian 2-forms and coRochesterian
vector fields on manifolds with a coclosed G_2-structure as a continuous of
work from [15], and we show that the spaces of coG_2-vector fields and of
coRochesterian vector fields are Lie subalgebras of the Lie algebra of vector
fields with the standard Lie bracket. We also define a bracket operation on the
space of coRochesterian 2-forms associated to the space of coRochesterian
vector fields and prove, despite the lack of a Jacobi identity, a relationship
between this bracket and so-called coG_2-morphisms.

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The categories of this paper are: cond-mat
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The categories of this paper are: supr-con
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The categories of this paper are: ao-sci
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The categories of this paper are: bayes-an
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The categories of this paper are: atom-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: comp-gas
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The categories of this paper are: hep-ex
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The categories of this paper are: cmp-lg
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The categories of this paper are: astro-ph
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The categories of this paper are: math-ph
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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: funct-an
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The categories of this paper are: acc-phys
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The categories of this paper are: cs