@article{Lee_Pak_Suh_2015, title={Hopf Hypersurfaces in Complex Two-Plane Grassmannians With $\mathfrak{D}$-Parallel Shape Operator}, volume={117}, url={https://www.mscand.dk/article/view/22868}, DOI={10.7146/math.scand.a-22868}, abstractNote={In this paper we consider a generalized condition for shape operator of a real hypersurface $M$ in complex two-plane Grassmannian $G_2(\mathsf{C}^{m+2})$, namely, $\mathfrak{D}$-parallel shape operator of $M$. Using such a notion, we prove that there does not exist a real hypersurface in complex two-plane Grassmannian $G_2(\mathsf{C}^{m+2})$ with $\mathfrak{D}$-parallel shape operator. }, number={2}, journal={MATHEMATICA SCANDINAVICA}, author={Lee, Hyunjin and Pak, Eunmi and Suh, Young Jin}, year={2015}, month={Dec.}, pages={217–230} }