On four manifolds which are positively pinched

DOI10.1007/BF00128020zbMath0656.53039MaRDI QIDQ1110105

Walter Seaman

Publication date: 1987

Published in: Annals of Global Analysis and Geometry (Search for Journal in Brave)

zbMATH Keywords

sectional curvaturesphere theorempinching theorem

Mathematics Subject Classification ID

Global Riemannian geometry, including pinching (53C20)

Related Items

Les variétés riemanniennes de dimension 4 4/19-pincées. (4/19- pinched Riemannian manifolds of dimension 4) ⋮ Four-dimensional manifolds with pinched positive sectional curvature ⋮ Einstein four-manifolds of three-nonnegative curvature operator

Cites Work

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• A unique continuation theorem for solutions of elliptic partial differential equations or inequalities of second order
• The topology of four-dimensional manifolds
• Les variétés riemanniennes de dimension 4 4/19-pincées. (4/19- pinched Riemannian manifolds of dimension 4)
• Certain conditions for a Riemannian manifold to be isometric with a sphere
• Two-Forms on Four-Manifolds