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arxiv: 1511.07899 · v2 · pith:PPX3QAZZnew · submitted 2015-11-24 · 🧮 math.DG

Strongly nonnegative curvature

classification 🧮 math.DG
keywords curvaturenonnegativebecomeconditioncurrentlyexamplesformknown
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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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