Jacobi operators along the structure flow on real hypersurfaces in a nonflat complex space form

U-Hang Ki, Hiroyuki Kurihara, Ryoichi Takagi

Let $M$ be a real hypersurface of a complex space form with almost contact metric structure $(\varphi ,\xi ,\eta ,g)$. In this paper, we study real hypersurfaces in a complex space form whose…