Cyclic parallel structure Jacobi operator for real hypersurfaces in complex two-plane Grassmannians
Keyword(s):
In this paper, from the property of Killing for structure Jacobi tensor $\mathbb {R}_{\xi }$ , we introduce a new notion of cyclic parallelism of structure Jacobi operator $R_{\xi }$ on real hypersurfaces in the complex two-plane Grassmannians. By virtue of geodesic curves, we can give the equivalent relation between cyclic parallelism of $R_{\xi }$ and Killing property of $\mathbb {R}_{\xi }$ . Then, we classify all Hopf real hypersurfaces with cyclic parallel structure Jacobi operator in complex two-plane Grassmannians.
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Keyword(s):
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