Geodesic
Nonexistence of non-Hopf Ricci-semisymmetric real hypersurfaces in $\mathbb {C}P^{2}$ and $\mathbb {C}H^{2}$
Canadian mathematical bulletin, Tome 67 (2024) no. 1, pp. 188-200

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DOI

In this paper, we solved an open problem raised by Cecil and Ryan (2015, Geometry of Hypersurfaces, Springer Monographs in Mathematics, Springer, New York, p. 531) by proving the nonexistence of non-Hopf Ricci-semisymmetric real hypersurfaces in $\mathbb {C}P^{2}$ and $\mathbb {C}H^{2}$.
DOI : 10.4153/S0008439523000619
Mots-clés : Nonflat complex planes, Ricci-semisymmetric, non-Hopf hypersurface 
Cui, Qianshun; Hu, Zejun. Nonexistence of non-Hopf Ricci-semisymmetric real hypersurfaces in $\mathbb {C}P^{2}$ and $\mathbb {C}H^{2}$. Canadian mathematical bulletin, Tome 67 (2024) no. 1, pp. 188-200. doi: 10.4153/S0008439523000619
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     title = {Nonexistence of {non-Hopf} {Ricci-semisymmetric} real hypersurfaces in $\mathbb {C}P^{2}$ and $\mathbb {C}H^{2}$},
     journal = {Canadian mathematical bulletin},
     pages = {188--200},
     year = {2024},
     volume = {67},
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     doi = {10.4153/S0008439523000619},
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