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On the Radius of Starlikeness for Harmonic Mappings

Journal Article · · Journal of Mathematical Sciences

In this paper, we obtain a criterion of starlikeness for the image of the disk with center at the origin and radius r ∈ (0, 1) under a univalent harmonic mapping by a function that maps the unit disk onto a convex domain. This criterion is similar to the criterion of image convexity, and it is expressed in terms of starlikeness in one direction. As a corollary, we obtain a new estimate for the radius of starlikeness of the class of univalent harmonic mappings that take the unit disk onto a convex domain.

OSTI ID:
22773773
Journal Information:
Journal of Mathematical Sciences, Journal Name: Journal of Mathematical Sciences Journal Issue: 3 Vol. 234; ISSN JMTSEW; ISSN 1072-3374
Country of Publication:
United States
Language:
English

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