SOME CHARACTERIZATIONS OF CR-SUBMANIFOLDS WITH (n - 1) CR-DIMENSION IN A COMPLEX PROJECTIVE SPACE

The purpose of this paper is to give some characterizations of $n$-dimensional CR-submanifolds with ($n-1$) CR-dimension immersed in a complex projective space $CP^{\frac{n+2}{2}}$, in terms of the Riemannian curvature tensor R.