关于差分方程的一个问题

ON A QUESTION OF DIFFERENCE EQUATION

证明了有限级亚纯函数存在精确下级及下型函数,运用它并通过例子,完整地回答了YANG提出的一个关于差分方程的问题.

A theorem, i.e. for any moronorphic function of finite order, there exists a precise low order and a low type function, is proved. Then the question of difference equation posed by YANG is answered affirmatively by the use of this theorem and an example.