Intermediate-step conjectures for the logarithmic Kazhdan–Lusztig correspondence

Let Wlog\mathcal{W}^{\log} be the proposed logarithmic conformal field theory obtained from the screening-kernel construction, and let lattice-VOA modules be restricted to it. Intermediate correspondence conjectures. The irreducible Wlog\mathcal{W}^{\log}-modules should arise as unique irreducible quotients of such restricted lattice-VOA modules; Weyl-group or Weyl-groupoid combinations of short screenings should act on lattice-VOA representations and intertwine the relevant Virasoro actions; these screening maps should determine the decomposition of restricted modules; the resulting irreducibles should have nonzero Ext\operatorname{Ext} groups precisely along Weyl-group orbits; and one should be able to construct a bimodule from the reflected lattice VOAs that is a projective cover of the vacuum representation and carries a full uq(g)u_q(\mathfrak{g})-action. These are proposed steps toward the correspondence, and the source gives no resolution.

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Primary source

Simon D. Lentner, “Quantum groups and Nichols algebras acting on conformal field theories”, arXiv:1702.06431 (2021).

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