For Φ=u-f(v)=0 D=1D= of(v) Y=Y(v,v) Ov =M"-MmD.更,-更,西,y(Mm-M中.'o) ⑨=0-M更,y-更,西.y但-MΦy) are the functions M=M(v) 0=0(,) u f (v) 0 I u M M M u v v u M M u v 1 1 1 ˆ uv uu T vv vu T 1 1 1 ˆ Q Q M u v u Q M u Au uu T Av vu T v f v v ( ) ( ) ˆ ˆ M M v ( , ) ˆ ˆ Q Q v v (v,v)