Logarithmic Kazhdan–Lusztig conjecture for kernels of screening operators

Let V\mathcal{V} be a vertex algebra, let ZM1,,ZMn\mathfrak{Z}_{\mathcal{M}_1},\ldots,\mathfrak{Z}_{\mathcal{M}_n} be screening operators, and let WV\mathcal{W}\subset\mathcal{V} be their common kernel. Write Rep(V)\operatorname{Rep}(\mathcal{V}) for the representation category of V\mathcal{V}, and let YDBB(Rep(V))\mathcal{YD}^{\mathfrak{B}}_{\mathfrak{B}}(\operatorname{Rep}(\mathcal{V})) denote the generalized quantum group associated with the relevant Nichols algebra. Logarithmic Kazhdan–Lusztig conjecture. Under suitable assumptions, the category of representations of W\mathcal{W} is given by the generalized quantum group YDBB(Rep(V))\mathcal{YD}^{\mathfrak{B}}_{\mathfrak{B}}(\operatorname{Rep}(\mathcal{V})). This is presented as the author's version of the logarithmic Kazhdan–Lusztig conjecture; the notes do not specify the assumptions or provide evidence of resolution.

Sources & referencesView supporting material

Primary source

Simon D. Lentner, “Lecture notes on Nichols algebras”, arXiv:2602.00651 (2026).

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