Bull. Korean Math. Soc. 2001; 38(2): 379-387
Printed June 1, 2001
Copyright © The Korean Mathematical Society.
Ming-liang Fang
Nanjing Normal University
In this paper, we study the value distribution of meromorphic functions and prove the following theorem: Let $f(z)$ be a transcendental meromorphic function. If $f$ and $f'$ have the same zeros, then $f'(z)$ takes any non-zero value $b$ infinitely many times.
Keywords: meromorphic function, Picard value, normal criterion, value distribution
MSC numbers: 30D35
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