# Stick Number

Every knot has a description as a polygon, determined by a finite sequence of vertices in three-space and formed by joining successive vertices by line segments. The stick number of a knot is the minimum number of vertices in such a polygonal description of the knot.
Initial data for the table, through 9 crossings, came from [2],
where the work of [1], [4], and [5] is credited for the original computations. The references
include many values that do not appear in that original source.

## Specific Knots

9_{35},
9_{39},
9_{43},
9_{45},
9_{48}.

Ref. [4]

## References

[1] Calvo, J. A., *Geometric Knot Theory,* Ph.D. Thesis, Univ. Calif. Santa Barbara, 1998.

(For polygons with up to 9 edges.)

[2] Cromwell, P., *Knots and Links,* Cambridge University Press, 2004.

[3] Eddy, T. D. and Shonkwiler, C., "New stick number Bounds from random sampling of confined polygons,"
Arxiv preprint.

[4] Negami, S., "Ramsey theorems for knots, links and spatial graphs," Trans. Amer. Math. Soc. **324** no. 2
(1991), 527-541.

[5] Randell, R., "Invariants of piecewise-linear knots," Knot theory (Warsaw, 1995), 307-319, Banach Center Publ.,
42, Polish Acad. Sci., Warsaw, 1998.

(For polygons with up to 8 edges.)