On the geometry of screen conformal submersions of semi-transversal lightlike submanifolds
Abstract
We study screen conformal lightlike submersions of semi-transversal lightlike submanifolds of indefinite Kaehler manifolds, which can be considered as a lightlike version of horizontally conformal submersions. We establish necessary and sufficient conditions for a screen conformal lightlike submersion to be harmonic.
Communicated by K. Ueno