Zhong Hualiang (Department of Mathematics and Physics Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China)
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History+
Received
Revised
Published
1991-01-21
1993-06-21
1994-07-15
Issue Date
1994-07-15
Abstract
In this paper we yield a inequality of the deficiency sum of any meromorphic function and its all order derived functions, and discuss some functions whose ail derived functions' deficiency sum arrives at maximum 2. Furthermore we prove F.Nevanlinna conjecture in this case.