Page 138 - Curvature and Homology
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120     111.  RIEMANNIAN  MANIFOLDS:  CURVATURE,  HOMOLOGY

          We evaluate the Lie  derivative of  the Levi  Civita connection forms
        COT with respect to a vector field X defining an infinitesimal affine collinea-
        tion:




















        Consequently,
















        Hence, by (3.10.3)  for an infinitesimal affine collineation X = fi(a/aui)



          Transvecting (3.10.4)  with gik we see that





        Again,  if  we  transvect  (3.10.4)  with  6$ we  obtain  D,D4p = 0,  that  is
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