arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1104.2382math.CV
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与一阶导数共享单$a$ -点的整函数

Entire functions sharing simple $a$-points with their first derivative

Andreas Schweizer

摘要:

我们证明了如果一个复整函数$f$和它的导数$f'$对于某个非零常数$a$共享它们的简单零点和它们的简单$a$ -点,那么$f\equiv f'$ .我们还讨论了在多大程度上这些条件可以放宽或推广。最后,我们确定所有的整函数$f$,使得对于3个不同的复数$a_1,a_2,a_3$,$f$的每个简单的$a_j$ -点是$f'$的$a_j$ -点。

英文摘要:

We show that if a complex entire function $f$ and its derivative $f'$ share their simple zeroes and their simple $a$-points for some nonzero constant $a$, then $f\equiv f'$. We also discuss how far these conditions can be relaxed or generalized. Finally, we determine all entire functions $f$ such that for 3 distinct complex numbers $a_1,a_2,a_3$ every simple $a_j$-point of $f$ is an $a_j$-point of $f'$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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