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Proceedings of the American Mathematical Society

Published by the American Mathematical Society since 1950, Proceedings of the American Mathematical Society is devoted to shorter research articles in all areas of pure and applied mathematics.

ISSN 1088-6826 (online) ISSN 0002-9939 (print)

The 2020 MCQ for Proceedings of the American Mathematical Society is 0.85.

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Harmonic measure and conformal length
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by Knut Øyma PDF
Proc. Amer. Math. Soc. 115 (1992), 687-689 Request permission

Abstract:

Let $f(z)$ be any univalent function that maps the unit disc onto a domain $\Omega$. We prove that for any line $L$ the length of ${f^{ - 1}}(\Omega \cap L)$ is less than $4\pi$.
References
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Additional Information
  • © Copyright 1992 American Mathematical Society
  • Journal: Proc. Amer. Math. Soc. 115 (1992), 687-689
  • MSC: Primary 30C35
  • DOI: https://doi.org/10.1090/S0002-9939-1992-1101991-1
  • MathSciNet review: 1101991