Complexified volume conjecture for hyperbolic knots and links

Let KK be a hyperbolic knot or link, so that S3KS^3\setminus K admits a hyperbolic structure. Let JN1(K)J_{N-1}(K) be the normalized colored Jones polynomial at q=exp(πi/N)q=\exp(\pi i/N), and let Vol(K)\mathrm{Vol}(K) denote the hyperbolic volume of S3KS^3\setminus K. Let CS(K)\mathrm{CS}(K) be 2π22\pi^2 times the Chern–Simons invariant cs(S3K)cs(S^3\setminus K), where cs(S3K)cs(S^3\setminus K) is a real number between 00 and 1/21/2. Complexified volume conjecture. For a hyperbolic knot or link KK,

2πlimNlogJN1(K)N=Vol(K)+CS(K)1(mod π21Z).2\,\pi\,\lim_{N\to\infty}\frac{\log J_{N-1}(K)}{N}=\mathrm{Vol}(K)+\mathrm{CS}(K)\,\sqrt{-1}\quad (\operatorname{mod}\ \pi^2\sqrt{-1}\,\mathbb{Z}).

This refines the ordinary volume conjecture by incorporating the Chern–Simons invariant into a complex asymptotic. The supplied text does not state whether this conjecture has been resolved.

Sources & referencesView supporting material

Primary source

Jun Murakami, “Complexified tetrahedrons, fundamental groups, and volume conjecture for double twist knots”, arXiv:2501.00225 (2025).

Additional references

3 papers in this index state this conjecture (2004–2025). The statement above is taken from the most recent of them; the others are arXiv:1406.1287, arXiv:math/0401084.

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