Thrackle

A thrackle is an embedding of a graph in the plane, such that each edge is a Jordan arc and every pair of edges meet once. Edges may either meet at a common endpoint, or, if they have no endpoints in common, at a point in their interiors. In the latter case, the crossing must be transverse.

单词	Thrackle
释义	Thrackle 英语百科 Thrackle A thrackle is an embedding of a graph in the plane, such that each edge is a Jordan arc and every pair of edges meet once. Edges may either meet at a common endpoint, or, if they have no endpoints in common, at a point in their interiors. In the latter case, the crossing must be transverse.
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