Description9crossing-knot symmetrical grid.svg A quasi-ornamental knot with 9 crossings, 2-fold rotational symmetry, and crossings laid out on a 3×3 grid. Topologically...
knot-theory 2-symmetrical.png Depiction of 9_23 knot of knot theory with 2-fold rotational symmetry. Topologically equivalent to File:9crossing-knot symmetrical...
