The ADO limit formula for Z^\widehat Z-invariants

Let KK be a knot, let pp be a positive integer, and let ADOp(x;K)\operatorname{ADO}_p(x;K) denote the Akutsu–Deguchi–Ohtsuki polynomial invariant associated with the quantum group Uq(sl2)\mathcal U_q(\mathfrak{sl}_2) at the even 2p2p-th root of unity. Let Z^(M3,SU(2),q)\widehat Z(M_3,SU(2),q) denote the qq-series invariant of the knot complement, and set ζp=e2πi/p\zeta_p=e^{2\pi i/p}. The ADO–Z^\widehat Z conjecture. For any knot KK, the limit of the corresponding Z^\widehat Z-invariant as qζpq\to\zeta_p is the ADO invariant:

limqζpZ^(S3K,SU(2),q)=ADOp(x;K).\lim_{q\to\zeta_p}\widehat Z(S^3\setminus K,SU(2),q)=\operatorname{ADO}_p(x;K).

The supplied candidate contains only the opening sentence of the conjectural statement, so the exact normalization and any additional variables or summation over Spinc\operatorname{Spin}^c structures cannot be recovered from the span; the relation is presented as evidence for knot complements, while general 3-manifolds are left for future work.

Sources & referencesView supporting material

Primary source

Sergei Gukov, Po-Shen Hsin, Hiraku Nakajima, Sunghyuk Park, Du Pei and Nikita Sopenko, “Rozansky-Witten geometry of Coulomb branches and logarithmic knot invariants”, arXiv:2005.05347 (2020).

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