The geometric Cartan doubled Yangian conjecture for perverse coherent systems

Let XX be the local toric Calabi–Yau 33-fold in the source, let YY_\infty be the geometric Cartan doubled Yangian, and let V:=Hc(\fMζχ,φWC)V:=H^*_c(\fM_\zeta^\chi,\varphi_W\mathbf{C})^\vee be the indicated cohomology vector space of the moduli space of stable perverse coherent systems. Let D(SH)D(\mathcal{SH}) be the Drinfeld double constructed from the relevant Cohomological Hall algebra, and let the shifted affine Yangian have shift determined by [χ][\chi] and ζ\zeta. Geometric Cartan doubled Yangian conjecture. The algebra YY_\infty is isomorphic to D(SH)D(\mathcal{SH}), it acts on VV, and this action factors through an action of the shifted affine Yangian with the shift determined by [χ][\chi] and ζ\zeta. This is an expected geometric construction and representation statement; the supplied source does not state a resolution.

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Primary source

Miroslav Rapcak, Yan Soibelman, Yaping Yang and Gufang Zhao, “Cohomological Hall algebras and perverse coherent sheaves on toric Calabi-Yau 3-folds”, arXiv:2007.13365 (2023).

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