Skip to main content
3 events
when toggle format what by license comment
Mar 26, 2022 at 0:51 vote accept Dmitrii Korshunov
Mar 26, 2022 at 0:31 comment added Dmitrii Korshunov thank you! (take a plane that separates the first knot from the second one and intersect it with the annulus. move it, if necessary, to turn the intersection into a smooth submanifold. one of its connected components must be a circle that is non-trivial in the annulus. this component is by construction not tangled. shrink the annulus to a nontangled equator and untie -- this would give the triviality of the initial knot)
Mar 19, 2022 at 7:15 history answered Bruno Martelli CC BY-SA 4.0