No001 (December 1995) Hitoshi Furuhata，sometric pluriharmonic immersions of Kahler manifolds into semi-Euclidean spaces

In this thesis, we prove a classification of isometric pluriharmonic immersions of a K¨ahler manifold into a semi-Euclidean space, which establishesa generalization of Calabi-Lawson’s theory concerning minimalsurfaces in Euclidean spaces. Then we study these immersions for complete Kahler manifolds with low codimensions, and prove, in particular,a cylinder theorem and a Bernste..