Uniform folded ribbonlength conjecture for (2,q)-torus links

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Let T(2,q)T(2,q) denote a (2,q)(2,q)-torus link, let [T(2,q)][T(2,q)] denote its link type, and let Rib⁡([T(2,q)]){\operatorname{Rib}}([T(2,q)]) denote its infimal folded ribbonlength. Uniform torus-link conjecture. There is a constant C>0C>0 such that

Rib⁡([T(2,q)])≤{q+3when q≤10,83≤13.86when q≥11 is odd,Cwhen q≥12 is even.{\operatorname{Rib}}([T(2,q)])\leq \begin{cases} q+3 & \text{when }q\leq 10,\\ 8\sqrt{3}\leq 13.86 & \text{when }q\geq 11\text{ is odd},\\ C & \text{when }q\geq 12\text{ is even}. \end{cases}

The statement combines explicit small-crossing bounds with uniform bounds for the odd and even families; the paper presents it as a conjecture following constructions and previously known uniform estimates.

References

Primary source

Zhicheng Chen, Elizabeth Denne, Kyle Patterson and Timi Patterson, “Ribbonlength upper bounds for small crossing knots and links”, arXiv:2510.16190 (2025).

Additional references

2 papers in this index state this conjecture (2025). The statement above is taken from the most recent of them; the others are arXiv:2509.18370.

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