Subordination by convex functions
Let K(α), 0≤α<1, denote the class of functions g(z)=z+Σn=2∞anzn which are regular and univalently convex of order α in the unit disc U. Pursuing the problem initiated by Robinson in the present paper, among other things, we prove that if f is regular in U,f(0)=0, and f(z)+zf′(z)<g(z)+zg′(z) in...
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Main Authors: | Ram Singh, Sukhjit Singh |
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Format: | Article |
Language: | English |
Published: |
Wiley
2000-01-01
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Series: | International Journal of Mathematics and Mathematical Sciences |
Subjects: | |
Online Access: | http://dx.doi.org/10.1155/S016117120000140X |
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