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arXiv · 1511.07899

Strongly nonnegative curvature

Renato G. Bettiol·Ricardo A. E. Mendes
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Abstract

We prove that all currently known examples of manifolds with nonnegative sectional curvature satisfy a stronger condition: their curvature operator can be modified with a 4-form to become positive-semidefinite.

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Renato G. Bettiol, Ricardo A. E. Mendes. 2016-07-29. Strongly nonnegative curvature. https://doi.org/10.1007/s00208-016-1457-3

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