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Entire functions that share finite values with their derivatives

Published online by Cambridge University Press:  17 April 2009

Yang Lian-Zhong
Affiliation:
Department of Mathematics, Shandong University, Jinan, Shandong 250100, People's Republic of China
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It is shown that if a nonconstant entire function f(z) and its derivative f(k)(z), share two finite values (counting multiplicities), then f(z) = f(k)(z), where k is a positive integer.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1990

References

[1]Frank, G., ‘Eine vermutung von Hayman uber nullstellen meromorpher funktionen’, Math. Z. 149 (1976), 2936.CrossRefGoogle Scholar
[2]Gundersen, G., ‘Meromorphic functions that share finite values with their derivatives’, J. Math. Anal. Appl. 75 (1980), 441446.CrossRefGoogle Scholar
[3]Gundersen, G., ‘Meromorphic functions that share two finite values with their derivatives’, Pacific J. Math. 105 (1983), 299309.CrossRefGoogle Scholar
[4]Hayman, W.K., Meromorphic Functions (Clarendon Press, Oxford, 1964).Google Scholar
[5]Mues, E. and Steinmetz, N., ‘Meromorphe funktionen, die mit ihrer ableitung werte teilen’, Manuscripta Math. 29 (1979), 195206.CrossRefGoogle Scholar
[6]Rubel, L.A. and Yang, C.C., ‘Values shared by an entire function and its derivative’, in Complez Analysis: Lecture Notes in Mathematics No. 599, (Proc. Conf.), pp. 101103 (Springer-Verlag, Heidelberg, Berlin, New York, 1977).CrossRefGoogle Scholar