S. Zhang's embedding conjecture for Hall algebra Drinfeld doubles

From papers

Let C1\mathcal{C}_1 and C2\mathcal{C}_2 be finitary hereditary connected Fq\mathbb{F}_q-linear categories, and let D~HCi\widetilde{\mathbf{D}}\mathbf{H}_{\mathcal{C}_i} denote their reduced Drinfeld doubles. Let Ψ:Uν(Lb+)H~Xp,λ\Psi:\mathbf{U}_{\nu}(\mathcal{L}\mathfrak{b}_+)\to\widetilde{\mathbf{H}}'_{\mathbb{X}_{\mathbf{p},\boldsymbol{\lambda}}} be the algebra morphism described in the preceding theorem. S. Zhang's embedding conjecture. The map Ψ\Psi is an embedding for every weighted projective line Xp,λ\mathbb{X}_{\mathbf{p},\boldsymbol{\lambda}}. This extends the known embedding result for parabolic and elliptic weighted projective lines to the remaining cases.

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Primary source

Olivier Schiffmann, “Lectures on Hall algebras”, arXiv:math/0611617 (2009).

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