Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Formality of Positive Quaternion Kaehler Manifolds   Positive Quaternion Kaehler Manifolds are Riemannian manifolds with holonomy
contained in Sp(n)Sp(1) and with positive scalar curvature. Conjecturally, they
are symmetric spaces. We offer a new approach to this field of study via
Rational Homotopy Theory, thereby proving the formality of Positive Quaternion
Kaehler Manifolds. This result is established by means of an in-depth
investigation on how formality behaves under spherical fibrations.

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The categories of this paper are: nlin
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The categories of this paper are: chem-ph
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The categories of this paper are: hep-th
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The categories of this paper are: hep-ph
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The categories of this paper are: q-bio
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The categories of this paper are: cond-mat
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The categories of this paper are: quant-ph
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The categories of this paper are: astro-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: patt-sol
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The categories of this paper are: nucl-ex
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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: comp-gas
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The categories of this paper are: econ
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The categories of this paper are: chao-dyn