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Unknotting problem

Unknotting problem

Determining whether a knot is the unknot.

Uncommon
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Readers' pathsAug 2026 – Oct 2026

Readers go next to

Share of the 151 clicks on its links

  1. Unknot

    Loop seen as a trivial knot.

    57%

  2. Morwen Thistlethwaite

    Mathematician specializing in knot theory.

    11%

  3. Unknotting number

    Minimum number of times a specific knot must be passed through itself to become untied.

    9.9%

  4. Reidemeister move

    One of three types of isotopy-preserving local changes to a knot diagram.

    7.3%

Readers come from

Share of the 292 readers arriving from another article

  1. Unknot

    Loop seen as a trivial knot.

    27%

  2. Unknotting number

    Minimum number of times a specific knot must be passed through itself to become untied.

    15%

  3. Disentanglement puzzle

    Simple mechanical puzzles using topology.

    14%

  4. Knot theory

    Study of mathematical knots.

    8.9%