On pseudometrics for generalized uniform structures
On pseudometrics for generalized uniform structures
Proof.If M is Ricci flat it is trivially Einstein and, since L2 -HL = 0, one of the principal curvatures is zero.If R* = bl, then L2-HL + bI = 0.If K = 0, then there is a zero principal curvature and a unit principal vector X with LX = …