A note on curvature tensor in three-manifold (Q1076349)

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scientific article; zbMATH DE number 3953728
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A note on curvature tensor in three-manifold
scientific article; zbMATH DE number 3953728

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    A note on curvature tensor in three-manifold (English)
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    1985
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    The author gives (pointwise) necessary and sufficient conditions for positive sectional curvature in a pseudo-Riemannian manifold of dimension 3 in terms of the Ricci tensor. His method uses the algebraic theory of Weierstraß characteristics.
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    positive sectional curvature
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    Ricci tensor
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