The periodic mapping-torus volume conjecture for Kauffman bracket intertwiners

Let SS be an oriented surface with negative Euler characteristic, let φ\varphi be a periodic diffeomorphism, and let [γ][\gamma] be a φ\varphi-invariant smooth character with φ\varphi-invariant puncture weights pvp_v. For qn=e2πi/nq_n=e^{2\pi i/n} with (qn)1/2=eπi/n(q_n)^{1/2}=e^{\pi i/n}, let Λφ,γqn\Lambda^{q_n}_{\varphi,\gamma} be the normalized Kauffman bracket intertwiner associated with these data. The periodic mapping-torus volume conjecture. One should have

limn odd1nlogTraceΛφ,γqn=0.\lim_{n\text{ odd}\rightarrow\infty}\frac{1}{n}\log\left|\operatorname{Trace}\Lambda^{q_n}_{\varphi,\gamma}\right|=0.

The mapping torus of a periodic diffeomorphism is a Seifert manifold and has zero simplicial volume, so this predicts that the exponential growth rate of the intertwiner trace vanishes in the non-hyperbolic periodic case. The paper establishes the analogous vanishing result for closed-torus mapping classes, while the general periodic case is presented as a conjecture.

Sources & referencesView supporting material

Primary source

Zhihao Wang, “Kauffman bracket intertwiners and the volume conjecture”, arXiv:2212.01069 (2024).

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