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A Criterion for Starlikeness

✍ Scribed by Milutin Obradović; Shigeyoshi Owa

Publisher
John Wiley and Sons
Year
1989
Tongue
English
Weight
230 KB
Volume
140
Category
Article
ISSN
0025-584X

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✦ Synopsis

Abstraet. Let f(z) =z+%zZ+ ... be analytic in the unit disc U = ( z : IzI -=l). By use of certain , zE U, end the method of differential subordinations, we give a criterion for a function f ( z ) to be in a certain class S*[a, b] of starlike functions.

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