A counterexample to the Bernhard-Jablan unknotting conjecture
Brittenham, Mark · Hermiller, Susan
Original · EN
We show that there is a knot satisfying the property that for each minimal crossing number diagram of the knot and each single crossing of the diagram, changing the crossing results in a diagram for a knot whose unknotting number is at least that of the original knot, thus giving a counterexample to the Bernhard-Jablan Conjecture.
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