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Typically-Real Functions
A function a n real, is called typically-real of order one in the closed region ∣z∣ ≦ R if it satisfies the following conditions (6). (1) f(z) is regular in ∣z∣ ≦ R (2) ∮{f(z)} > 0 if and only if ∮{z} >0. The same function is called typically-real of …