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zbMath1220.53043MaRDI QIDQ3076571

Gérard Besson

Publication date: 23 February 2011

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

zbMATH Keywords

deformation curvature operator Ricci flow positive sectional curvature exotic spheres \(\delta\)-pinched manifold admit strictly \({1\over 4}\)-pinched metrics flux of the Ricci curvature isotropic sectional curvature

Mathematics Subject Classification ID

Global Riemannian geometry, including pinching (53C20) Methods of global Riemannian geometry, including PDE methods; curvature restrictions (53C21)

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