Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the moduli spaces of metrics with nonnegative sectional curvature   The Kreck-Stolz s invariant is used to distinguish connected components of
the moduli space of positive scalar curvature metrics. We use a formula of
Kreck and Stolz to calculate the s invariant for metrics on S^n bundles with
nonnegative sectional curvature. We then apply it to show that the moduli
spaces of metrics with nonnegative sectional curvature on certain 7-manifolds
have infinitely many path components. These include the first non-homogeneous
examples of this type and certain positively curved Eschenburg and
Aloff-Wallach spaces.

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The categories of this paper are: comp-gas
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The categories of this paper are: alg-geom
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The categories of this paper are: hep-ex
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The categories of this paper are: adap-org
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The categories of this paper are: acc-phys
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The categories of this paper are: dg-ga
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The categories of this paper are: hep-th
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The categories of this paper are: chao-dyn
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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: bayes-an
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The categories of this paper are: q-alg
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The categories of this paper are: physics
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The categories of this paper are: astro-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: econ