On integral functions with derivatives univalent in a circle
It is proved that if the increasing sequence $n_p$ of natural numbers satisfies the condition $n_{p+1}/n_p→1 (p→\infty)$ and all derivatives $f^{(n_p)}$ of the analytic function $f$ in $D=\{z : |z | < 1\}$ are univalent in $D$, then $f$ is an entire function. At the same time, for each...
Saved in:
| Date: | 1991 |
|---|---|
| Main Authors: | , |
| Format: | Article |
| Language: | Russian |
| Published: |
Institute of Mathematics, NAS of Ukraine
1991
|
| Online Access: | https://umj.imath.kiev.ua/index.php/umj/article/view/9622 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Journal Title: | Ukrains’kyi Matematychnyi Zhurnal |
| Download file: | |
Institution
Ukrains’kyi Matematychnyi ZhurnalBe the first to leave a comment!