L. Ryffel

collaborators

2 papers

math.GT2023

Trefoils and hexafoils in 3-braids

Sebastian Baader, Levi Ryffel

We determine the cobordism distance between all positive 3-braid links and connected sums of trefoil knots, up to a constant error. This may be seen as a reinterpretation of Coxete…

math.GT2022

Two strand twisting

Lambert A'Campo, Sebastian Baader, Livio Ferretti +1

We prove that fibred knots cannot be untied with $t ˉ_{2 k}$ -moves, for all $k \geq 2$ . More generally, we give an upper bound on the number of two strand twist operations that…