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December 15, 2022

Perko Pair demonstration page 6

Filed under: knots,Mathematics,the perko pair — Rob burchett @ 5:37 am

So sharing 17 is reduced to (a17(b17). In the other reduced diagram sharing 9 is reduced, but we can make it congruent to sharing 17 by expressing (a17(b17) as (b17(a17) and changing the orientation of that crossing. This is where the writhe changes.

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