• Mar 10, 2021

  Representing permutations relatively compactly

  Here is a more relative way to represent a permutation with the same economical number of bits.

• Mar 6, 2021

  Representing permutations compactly

  Here is a way to represent a permutation with a fairly economical number of bits.

• Mar 5, 2021

  Jordan curve illustrations: drawing the curve

  There is a Jordan curve such that every piecewise-linear path from the inside to the outside intersects the curve infinitely many times. I describe how to draw such a curve here, and do so.

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