REAL HYPERSURFACES IN THE COMPLEX HYPERBOLIC QUADRIC WITH CYCLIC PARALLEL STRUCTURE JACOBI OPERATOR

초록

Let M be a real hypersurface in the complex hyperbolic quadric Q(m*), m >= 3. The Riemannian curvature tensor field R of M allows us to define a symmetric Jacobi operator with respect to the Reeb vector field xi, which is called the structure Jacobi operator R xi = R( center dot , xi)xi is an element of End(TM). On the other hand, in [20], Semmelmann showed that the cyclic parallelism is equivalent to the Killing property regarding any symmetric tensor. Motivated by his result above, in this paper we consider the cyclic parallelism of the structure Jacobi operator R xi for a real hypersurface M in the complex hyperbolic quadric Q(m*). Furthermore, we give a complete classification of Hopf real hypersurfaces in Q(m*) with such a property.

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