ON THE DIFFERENTIABILITY OF T(r,f)

Douglas W. Townsend

《International Journal of Mathematics and Mathematical Sciences》 1982卷 (1982/12) Pp. 351-356

https://doi.org/10.1155/S0161171282000337

並列摘要

It is well known that T(r,f) is differentiable at least for r＞r_0. We show that, in fact, T(r,f) is differentiable for all but at most one value of r, and if T(r,f) fails to have a derivative for some value of r, then f is a constant times a quotient of finite Blaschke products.

並列關鍵字

Nevanlinna Theory ； Nevanlinna Characteristic Function