On Structure Of Nefvalue Morphisms Of Projective Varieties

Let M be a normal variety of dimensionn with terminal singularities, L bean ample line bundle on M, the effective value of (M, L)beτ=u/v(u，v arecoprime integers), σ:M→Wbe the nef-value morphism of (M, L). theclassification of (M, L)can be done by studying the value ofτ, When u=n1,the classification of(M, L), the results of other papers were extended.