Jacobi operators along the structure flow on real hypersurfaces in a nonflat complex space form
| Autor: | Ki, U-Hang, Kurihara, Hiroyuki, Takagi, Ryoichi |
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| Rok vydání: | 2007 |
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| Druh dokumentu: | Working Paper |
| Popis: | Let $M$ be a real hypersurface of a complex space form with almost contact metric structure $(\phi, \xi, \eta, g)$. In this paper, we study real hypersurfaces in a complex space form whose structure Jacobi operator $R_\xi=R(\cdot,\xi)\xi$ is $\xi$-parallel. In particular, we prove that the condition $\nabla_{\xi} R_{\xi}=0$ characterizes the homogeneous real hypersurfaces of type $A$ in a complex projective space or a complex hyperbolic space when $R_{\xi} \phi S=S \phi R_{\xi}$ holds on $M$, where $S$ denotes the Ricci tensor of type (1,1) on $M$. Comment: 14 pages |
| Databáze: | arXiv |
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