Canonical Planck-parameter lift conjecture for polynomial symplectomorphisms

Let RR be a finitely generated smooth commutative algebra over Z\mathbb Z, let Pn,RP_{n,R} be the polynomial Poisson algebra, and let An,R[]A^{\hbar}_{n,R[\hbar]} be the algebra over R[]R[\hbar] generated by x^1,,x^2n\hat{x}_1,\ldots,\hat{x}_{2n} with relations

[x^i,x^j]=ωij.[\hat{x}_i,\hat{x}_j]=\hbar\omega_{ij}.

For a positive integer MM, write R(M1)R(M^{-1}) for the localization obtained by inverting MM. Planck-parameter lift conjecture. For every symplectomorphism gAut(Pn,R)g\in\operatorname{Aut}(P_{n,R}), there exist a positive integer MM and an automorphism g~Aut(An,R(M1)[])\widetilde g\in\operatorname{Aut}(A^{\hbar}_{n,R(M^{-1})[\hbar]}) over R(M1)[]R(M^{-1})[\hbar] such that g~(mod)=g\widetilde g\pmod{\hbar}=g, and, for all sufficiently large primes pp, g~(modp)\widetilde g\pmod p preserves the subalgebra R/pR[y1p,,y2np]R/pR[y_1^p,\ldots,y_{2n}^p]. This proposes a one-parameter deformation lifting classical symplectomorphisms to automorphisms of the Weyl algebra with Planck parameter; the supplied source gives no resolution.

Sources & referencesView supporting material

Primary source

Alexei Belov-Kanel and Maxim Kontsevich, “Automorphisms of the Weyl algebra”, arXiv:math/0512169 (2005).

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