摘要
设f(z)与g(z)是复平面上的两个非常数亚纯函数,令h(z)=f(z)g(z).研究了当σ(h)=+∞时,h(z)的无穷级Borel方向与f(z)及g(z)的Borel方向之间的联系,作为推论并证明了当h(z)=f(z)+g(z)时,也有类似的结论.
Supposef(z) and g(z) are two non-constant meromorphic functions in the complex plane, set h(z) = f(z)g(z) . In this paper, we investigate the relations between the Borel directions of infi- nite order of h (z) and the Borel directions off(z) and g(z) when tr(h) = + ∞ , and as a corollary, analogs of above conclusions are proved remain true when h(z) = f(z)+ g(z) .
出处
《贵州师范大学学报(自然科学版)》
CAS
2012年第3期55-59,共5页
Journal of Guizhou Normal University:Natural Sciences
基金
国家自然科学基金(11171080)
贵州省科学技术基金(黔科合J字LKS[2010]07号)
关键词
亚纯函数
BOREL方向
角域特征函数
meromorphic function
borel direction
angular nevanlinna characteristics