SECOND-ORDER PARALLEL TENSORS ON S-MANIFOLDS AND SEMIPARALLEL HYPERSURFACES OF S-SPACE FORMS

摘要

We study a second-order parallel symmetric tensor in an S-manifold and show that there is no semiparallel hypersurface in the S-space forms (M) over tilde (2n+s) (c) with c 6 not equal s.