Journal of the Chungcheong Mathematical Society (충청수학회지)

The Chungcheong Mathematical Society (충청수학회)
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UNIVALENT HARMONIC EXTERIOR MAPPINGS

  • Received : 2003.10.23
  • Published : 2003.12.31
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Abstract

In this paper, we will show that the bounds for coefficients of harmonic, orientation-preserving, univalent mappings f defined on ${\Delta}$ = {z : |z| > 1} with $f({\Delta})={\Delta}$ are sharp by finding extremal functions.

Keywords