충청수학회지 (Journal of the Chungcheong Mathematical Society)

  • 제16권2호
  • /
  • Pages.31-41
  • /
  • 2003
  • /
  • 1226-3524(pISSN)
  • /
  • 2383-6245(eISSN)
충청수학회 (The Chungcheong Mathematical Society)
권호 표지

UNIVALENT HARMONIC EXTERIOR MAPPINGS

  • 투고 : 2003.10.23
  • 발행 : 2003.12.31
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초록

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.

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