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Some results on geodesic mappings of Riemannian manifolds satisfying the conditionR.R.=Q(S,R)
Authors:F Defever  R Deszcz
Institution:(1) Instituut voor Theoretische Fysica, Afdeling Algebra en Topologie, Celestijnenlaan 200 B/D, B-3001 Leuven, Belgium;(2) Department of Mathematics, Agricultural University of Wrolstrokaw, Ulica C. Norwida 25, 50-375 Wroclstrokaw, Poland
Abstract:In this paper geodesically corresponding metricsg and 
$$\bar g$$
on a manifoldM, dim ge5, under the assumption that the tensorsR andS of the metricg satisfyR.R=Q(S, R), are considered. It is stated that the corresponding tensors 
$$\bar R$$
and 
$$\bar S$$
of 
$$\bar g$$
not necessarily must satisfy 
$$\bar R.\bar R = Q(\bar S,\bar R)$$
. Certain relations between the curvatures ofg and 
$$\bar g$$
are obtained.Supported by a post-doctoral fellowship of the researchcouncil of the KU Leuven; Bitnet FGBDA3O at BLEKUL11
Keywords:Primary  58B20  53C25  53C80
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