Holomorphic maps from rational homogeneous spaces onto projective manifolds

摘要

Answering a problem raised by Lazarsfeld, Hwang and Mok proved that asurjective holomorphic map from a rational homogeneous space of Picard number 1onto projective manifold different from projective space must be abiholomorphism. THe aim of this paper is to generalized this result toirreducible rational homogeneous space of higher Picard number.