Trace asymptotics conjecture for geometric quantizations

Let (M,ω)(M,\omega) be a closed symplectic manifold, and let {Tk:C(M)L(Hk)}kN\{T_k:C^\infty(M)\to\mathcal{L}(H_k)\}_{k\in\mathbb{N}} be a geometric quantization satisfying the trace axiom and star product axiom. Let tr\operatorname{tr}_{\hbar} denote the canonical trace, with k=1/k=1/\hbar. Trace asymptotics conjecture. For all fC(M)f\in C^\infty(M) and mNm\in\mathbb{N}, one has the asymptotic expansion

trTk(f)=tr(f)+O(1/km)\operatorname{tr}\,T_k(f)=\operatorname{tr}_{\hbar}(f)+O(1/k^m)

as k=1/+k=1/\hbar\to+\infty. The conjecture asserts agreement with the canonical trace to every order; it was established for Berezin–Toeplitz quantizations of closed Kähler manifolds by Hawkins, so the source's cited case is solved while the general statement is not resolved here.

Sources & referencesView supporting material

Primary source

Louis Ioos, David Kazhdan and Leonid Polterovich, “Almost representations of algebras and quantization”, arXiv:2005.11693 (2022).

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