Conjecture on the trigonometric form of curve operators

Let t=(t1,,tn)t=(t_1,\ldots,t_n) be a family in ([0,π]Qπ)n([0,\pi]\cap\mathbb{Q}\pi)^n, let DD be the common denominator of the rational numbers tj/πt_j/\pi, and let cr=(rtjπ)Crnc_r=(r\frac{t_j}{\pi})\in\mathcal C_r^n for rr a multiple of DD. Let UU be the parameter domain, let EE be the edge set, and let γ\gamma be a multicurve. A family TrEnd(Vr(Σ,cr))T_r\in\operatorname{End}(V_r(\Sigma,c_r)) is trigonometric if there is an open subset VU×[0,1]V\subset U\times[0,1] containing Int(U)×{0}\operatorname{Int}(U)\times\{0\} and finitely many smooth functions Fk ⁣:VRF_k\colon V\to\mathbb R, indexed by maps k ⁣:EZk\colon E\to\mathbb Z, such that Trφcˇ=kFk(πcˇr,πr)φcˇ+kT_r\varphi_{\check c}=\sum_kF_k(\frac{\pi\check c}{r},\frac{\pi}{r})\varphi_{\check c+k} for every admissible coloring cˇ\check c. Trigonometric curve-operator conjecture. For every multicurve γ\gamma, the curve operator TrγT_r^\gamma is trigonometric; its coefficients FkF_k are recursively computable, FkF_k vanishes if the geometric intersection of γ\gamma with some CeC_e is lower than kek_e, and Fk(,0)F_k(\mathord\cdot,0) is the kk-th Fourier coefficient of fγf_\gamma for the (S1)E(S^1)^E-action described in the source. This conjecture predicts a general structural form for TQFT curve operators and relates their leading coefficients to the classical trace function.

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Primary source

Julien Marché and Thierry Paul, “Toeplitz operators in TQFT via skein theory”, arXiv:1108.0629 (2012).

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