本文研究了无穷级代数体函数Borel方向的判定问题.利用代数体函数的一个基本不等式,获得了一个关于无穷级代数体函数Borel方向的判定定理,将李国平关于无穷级半纯函数的聚值线判定定理推广到了无穷级代数体函数.
In this article, we investigate the problem on how to find a Borel direction for algebroidal functions of infinite order. Using a basic inequality of algebroidal functions, we obtain a theorem on Borel direction for algebroidal functions of infinite order, which extends one of Li Guoping’s theorems on the cluster line of meromorphic functions of infinite order.