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 On characterizations of real hypersurfaces with $\eta$-parallel Ricci operators in a complex space form Bull. Korean Math. Soc. 2006 Vol. 43, No. 2, 235-244 Published online June 1, 2006 In-Bae Kim, Hye Jeong Park, and Woon Ha Sohn Hankuk University of Foreign Studies, Hankuk University of Foreign Studies, Hankuk University of Foreign Studies Abstract : We shall give a characterization of a real hypersurface $M$ in a complex space form $\mn$, $c \neq 0$, whose Ricci operator and structure tensor commute each other on the holomorphic distribution of $M$, and the Ricci operator is $\eta$-parallel. Keywords : real hypersurfaces, model spaces of type $A$ or $B$ MSC numbers : Primary 53C40; Secondary 53C15 Downloads: Full-text PDF