Abstract
In this study, a link between the squared norm of the second fundamental form and the Laplacian of the warping function for a warped product pointwise semi-slant submanifold M-n in a complex projective space is presented. Some characterizations of the base N-T of M-n are offered as applications. We also look at whether the base N-T is isometric to the Euclidean space R-p or the Euclidean sphere S-p, subject to some constraints on the second fundamental form and warping function.