lake of Wada

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English[edit]

English Wikipedia has an article on:
Wikipedia

Etymology[edit]

Calque of Japanese 和田の湖. Introduced by Kunizo Yoneyama (in 1917), who credited the discovery to Takeo Wada.

Noun[edit]

lake of Wada (plural lakes of Wada)

  1. (mathematics) Any of three disjoint connected open sets of the plane or open unit square with the counterintuitive property that they all have the same boundary.

Related terms[edit]

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