Title: Derivatives of meromorphic functions concerning fix-points and polynomials
Abstract: The problems of fixed points and value distribution of K-order derivatives of meromorphic function are investigated.Let f(z) be a transcendental meromorphic function and k a positive integer and the zeros of f(z) are of multiplicity at least ≥k+1,and the poles at least 2,then f(k)(z) has infinitely many fixed points.
Publication Year: 2007
Publication Date: 2007-01-01
Language: en
Type: article
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