A note on local isometric imbeddings of complex projective spaces
The author proves that an n-dimensional complex projective space \(P_ n({\mathbb{C}})\) with the standard Kähler metric cannot be isometrically immersed into \({\mathbb{R}}^{2n+k}\) even locally if \(k<(6n-4)/5\).
scientific article; zbMATH DE number 4030453