Surface-group algebra presentation conjecture via the noncommutative Weil representation

From papers

Let CC be a genus-gg Heegaard surface with fundamental group π1(C)\pi_1(C), let XX be the associated three-manifold, and let L+L_+ be one of the two lattices in the Heegaard splitting. Let C ⁣L+ ⁣\mathbb C\langle\!\langle L_+\rangle\!\rangle be the completed noncommutative Laurent-polynomial algebra, let C ⁣L+ ⁣cyc\mathbb C\langle\!\langle L_+\rangle\!\rangle_{\operatorname{cyc}} be its cyclic quotient, and let \wp be the conjectural projective mapping-class-group representation. For the mapping class uu satisfying L=u(L+)L_-=u(L_+), define Φ=(u)(1)\Phi=\wp(u)(1). Surface-group algebra presentation conjecture. There is an algebra isomorphism

C[π1(X)]A(F,Φ),\mathbb C[\pi_1(X)]\cong\mathfrak A(F,\Phi),

where

F=C ⁣L+ ⁣,Φ=(u)(1)C ⁣L+ ⁣cyc.F=\mathbb C\langle\!\langle L_+\rangle\!\rangle,\qquad \Phi=\wp(u)(1)\in\mathbb C\langle\!\langle L_+\rangle\!\rangle_{\operatorname{cyc}}.

This is part of the proposed trigonometric counterpart of the Heisenberg and Weil representations; the source gives no resolution evidence.

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Sources & referencesView supporting material

Primary source

Victor Ginzburg, “Calabi-Yau algebras”, arXiv:math/0612139 (2007).

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