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edited title

edited Jul 18, 2020 at 16:01

Rodrigo de Azevedo

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How do we calculate the isotropic curvature is nonnegative on a $4$-dimensional manifold?

How do we calculate the isotropic curvature is nonnegative on a four dimension manifold? Do we verify it on any orthogonal basis?

dg.differential-geometry

asked Jul 18, 2020 at 0:02

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