1988•Science in China Series A-Mathematics Physics Astronomy & Technological ScienceRequires access
ON HAYMAN DIRECTIONS
Xianghong Gong, GU Yong-xing
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Abstract
In this paper, we shah show that if f(z) is a meromorphic function of order λ (0λ ∞) in the plane, then there exists a direction (B): arg z=θ_0(0≤θ_02π) such that holds for any positive 8, any positive integer k and any two meromorphic functions a(z), b(z) of order less than λ. with a~((k))(z)(?)b(z) in the plane.