在纽结理论中,环面纽结(torus knot)是一种特殊的结。它由一对整参数p和q决定。
(p,q)-环面纽结可以表示为:
这个纽结所处的平面为 (r − 2)2 + z2 = 1(以圆柱坐标系表示)。
性质
环面纽结的交叉数:
- c = min((p−1)q, (q−1)p).
种类数:
右手侧镜像的衍生数:
结组数:
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