Real Hypersurfaces in a Nonflat Complex Space Form with Special Structure Tensor Field
Journal of the Korean Society of Mathematical Education Series B: The Pure and Applied Mathematics / Journal of the Korean Society of Mathematical Education Series B: The Pure and Applied Mathematics, (P)1226-0657; (E)2287-6081
2021, v.28 no.3, pp.247-252
https://doi.org/https://doi.org/10.7468/jksmeb.2021.28.3.247
Lim, Dong Ho
Kim, Hoonjoo
Lim,,
D.
H.
, &
Kim,,
H.
(2021). Real Hypersurfaces in a Nonflat Complex Space Form with Special Structure Tensor Field. Journal of the Korean Society of Mathematical Education Series B: The Pure and Applied Mathematics, 28(3), 247-252, https://doi.org/https://doi.org/10.7468/jksmeb.2021.28.3.247
Abstract
Let M be a real hypersurface in a complex space form M<sub>n</sub>(c), c ≠ 0. In this paper, we prove that if (∇<sub>X</sub>ϕ)Y + (∇<sub>Y</sub>ϕ)X = 0 holds on M, then M is a Hopf hypersurface, where ϕ is the tangential projection of the complex structure of M<sub>n</sub>(c). We characterize such Hopf hypersurfaces of M<sub>n</sub>(c).
- keywords
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real hypersurface,
differential operator of structure tensor field,
Hopf hypersurface,
model spaces