角域内解析函数的一个定理

THEOREM FOR REGULAR FUNCTION IN AN ANGLE

设f(z)在角域Ω=Ω(α,β)={z|α<argz<β}内解析,若其中Ω’=Ω(α’,β’)(α<α’<β’<β),则对于任意有穷复数α成立,至多有一个例外.

Theorem Let function f(z) be negulan in an anglar domain Suppose Where Then We have. for any complex number a, writh at most one exceptional value.