Study On Nef-Value Morphisms Of Higher Dimensional Projective Varieties

Let M be an n-dimensional normal projective variety with only terminal singularities. Let L be an ample line bundle on M. Let #: M$ X be thenef-value morphism determined by (M,L), the positive rational number r - with uand v coprime is the nef-value of (M,J.). The nef-value morphism #has been studied in detail for n-2<=u<=n+l, and a classification of (M,L) is given.