An application of hypergeometric functions to a problem in function theory

In some recent work in univalent function theory, Aharonov, Friedland, and Brannan studied the series (1+xt)α(1−t)β=∑n=0∞An(α,β)(x)tn. Brannan posed the problem of determining S={(α,β):|An(α,β)(eiθ)|<|An(α,β)(1)|,   0<θ<2π,   α>0,   β>0,   n=1,2,3,…}. Brannan showed that if β≥α≥0, and...

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Bibliographic Details
Main Author: Daniel S. Moak
Format: Article
Language:English
Published: Hindawi Limited 1984-01-01
Series:International Journal of Mathematics and Mathematical Sciences
Subjects:
Online Access:http://dx.doi.org/10.1155/S0161171284000545