Isotropic Immersions of Complex Space Forms into Real Space Forms and Mean Curvatures
Bulletin Polish Acad. Sci. Math. 52 (2004), 431-436 MSC: 53B25, 53C40. DOI: 10.4064/ba52-4-9
Using an inequality related to the mean curvature, we give a sufficient condition for an isotropic immersion of a complex space form into a real space form to be parallel.