Counterexamples to the quadrisecant approximation conjecture
Counterexamples to the quadrisecant approximation conjecture
A quadrisecant line of a knot [Formula: see text] is a straight line which intersects [Formula: see text] in four points, and a quadrisecant is a 4-tuple of points of [Formula: see text] which lie in order along the quadrisecant line. If [Formula: see text] has a finite number of …