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Curvature of Level Curves of Harmonic Functions

Published online by Cambridge University Press:  20 November 2018

Marvin Ortel
Affiliation:
Department of Mathematics, University of Hawaii, HonoluluHI 96822
Walter Schneider
Affiliation:
Department of Mathematics, Carleton University, OttawaOntario, K1S5B6
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Abstract

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If H is an arbitrary harmonic function defined on an open set Ω⊂ℂ, then the curvature of the level curves of H can be strictly maximal or strictly minimal at a point of Ω. However, if Ω is a doubly connected domain bounded by analytic convex Jordan curves, and if H is harmonic measure of Ω with respect to the outer boundary of Ω, then the minimal curvature of the level curves of H is attained on the boundary of Ω.

Type
Research Article
Copyright
Copyright © Canadian Mathematical Society 1983

References

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