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math.GT2016
Infinitely many prime knots with the same Alexander invariants
Louis H. Kauffman, Pedro Lopes
We revisit the issue of the existence of infinitely many distinct prime knots with the same Alexander invariant. We present infinitely many distinct families, each family made up o…
math.GT2016
Delta Diagrams
Slavik Jablan, Louis H. Kauffman, Pedro Lopes
We call a Delta Diagram any diagram of a knot or link whose regions (including the unbounded one) have 3, 4, or 5 sides. We prove that any knot or link admits a delta diagram. We d…