拟亚纯映射的奇异方向

Singular Directions of Quasimeromorphic Mappings

该文定义了平面上拟亚纯映射的Ｎｅｖａｎｌｉｎｎａ方向，证明了无穷级拟亚纯映射ｆ（ｚ）至少有一条Ｎｅｖａｎｌｉｎｎａ方向并且它还是关于型函数Ｕ（ｒ）的Ｂｏｒｅｌ方向．

We define Nevanlinna derections of quasimeromorphic mapping on the complexplane and prove that there is at least a Nevanlinna direction for quasimeromorphic mappingof infinite order and it is also a Borel direction with respect to the type function U(r).