g()=以z=b为m阶零点 ∵f() -1 +….+-+C0+C )+-]=9 又g(-) (-b) f()9(=) 中在上=-6<R≤R内解析且=0( ) ( )以 z b为 m 阶零点 f z Û g z = = 1 ( ) ( ) ( ) ( ) C C (z b ) z b C z b C z b C f z m m m m + + - - + + - + - = - - - - - 0 1 1 1 1 1 Q ... o ( ) ( ) [ ( ) ] ( ) ( ) m m m m z b z C C z b z b - + - + = - = - - - j ... 1 1 ( ) ( ) ( ) ( ) , 1 2 z z b f z g z m j - 又 = = o ( ) ( ) 0 1 1 - < £ ¹ z z b R R j z j 其中 在 内解析且