EntityQ601110· pop 6· linked from 199 articlesflat manifoldSign in to saveRiemannian manifold with vanishing Riemann curvatureConnectionsmanifoldEntityspace groupEntityvector bundle connectionEntitymathematicsEntityInternational Standard Book NumberEntitycubeEntitydigital object identifierEntityInternational Standard Serial NumberEntitydoughnutEntitythree-dimensional spaceEntitytorusEntityMöbius stripEntityEuclidean spaceEntitytensorEntityQ118398Entityvector fieldEntityKlein bottleEntitygeodesic curveEntityLie groupEntitycompact spaceEntityCategoriesRiemannian manifolds