Lakes of Wada

In mathematics, the lakes of Wada (和田の湖, Wada no mizuumi?) are three disjoint connected open sets of the plane with the counterintuitive property that they all have the same boundary.

More than two sets with the same boundary are said to have the Wada property; examples include Wada basins in dynamical systems.

The lakes of Wada were introduced by Kunizō Yoneyama (1917), who credited the discovery to his teacher Takeo Wada.

Read more about Lakes Of Wada:  Construction of The Lakes of Wada, Wada Basins

Famous quotes containing the word lakes:

    It was inspiriting to hear the regular dip of the paddles, as if they were our fins or flippers, and to realize that we were at length fairly embarked. We who had felt strangely as stage-passengers and tavern-lodgers were suddenly naturalized there and presented with the freedom of the lakes and woods.
    Henry David Thoreau (1817–1862)