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| Crossing number (disambiguation) ： ウィキペディア英語版 |
Crossing number
Crossing number may refer to:
*Crossing number (knot theory) of a knot is the minimal number of crossings in any knot diagram for the knot.
*
*The average crossing number is a variant of crossing number obtained from a three-dimensional embedding of a knot by averaging over all two-dimensional projections.
*Crossing number (graph theory) of a graph is the minimal number of edge intersections in any planar representation of the graph.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「Crossing number」の詳細全文を読む
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