# Hokkaido Mathematical Journal

## Hokkaido Mathematical Journal, 34 (2005) pp.97-101

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### Abstract

Let $D$ be a Jordan domain in $\overline R^2$ and $\Gamma=\partial D$ be the boundary of $D$. Then $D$ is a quasidisk if and only if $\Gamma$ is a bounded circular distortion curve.

MSC(Primary) 30C62 bounded circular distortion curve, quasidisk, quasiconformal, mapping