Wild Point

For any point P on the boundary of an ordinary ball, find a neighborhood of P in which the intersection with the ball's boundary cuts the neighborhood into two parts, each homeomorphic to a ball. A wild point is a point on the boundary that has no such neighborhood.

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Cite this as:

Weisstein, Eric W. "Wild Point." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/WildPoint.html

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