The equivariant infinity-category construction conjecture

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Let GG be a smooth algebraic group and let XX be a left GG-variety over Spec⁡K\operatorname{Spec} K. Let Ner(SfResl⁡G(X)op⁡)\mathsf{Ner}(\operatorname{\mathbf{SfResl}}_G(X)^{\operatorname{op}}) be the simplicial nerve of SfResl⁡G(X)op⁡\operatorname{\mathbf{SfResl}}_G(X)^{\operatorname{op}}, and let FF be a pre-equivariant ∞\infty-pseudofunctor on XX, namely an ∞\infty-functor

F:Ner(SfResl⁡G(X)op⁡)→Nerhc⁡(QCat).F:\mathsf{Ner}(\operatorname{\mathbf{SfResl}}_G(X)^{\operatorname{op}})\to\mathsf{Ner}_{\operatorname{hc}}(\mathfrak{QCat}).

For Γ∈Sf⁡(G)0\Gamma\in\operatorname{\mathbf{Sf}}(G)_0, write  ΓX\,_{\Gamma}{\mathnormal{X}} for the corresponding variety, and for f∈Sf⁡(G)1f\in\operatorname{\mathbf{Sf}}(G)_1 write f‾\overline{\mathnormal{f}} for its induced map. The equivariant infinity-category construction conjecture. To FF there is an associated equivariant ∞\infty-category FG(X)F_G(X) whose 00-cells are pairs (A,TA)(A,T_A), where

A={ ΓA }Γ∈Sf⁡(G)0A=\lbrace\,_{\Gamma}{\mathnormal{A}}\,\rbrace_{\Gamma\in\operatorname{\mathbf{Sf}}(G)_0}

with each  ΓA\,_{\Gamma}{\mathnormal{A}} a 00-cell of F( ΓX)F(\,_{\Gamma}{\mathnormal{X}}), and

TA={τfA:F(f‾)( Γ′A)→≃ ΓA}f∈Sf⁡(G)1,T_A=\lbrace\tau_f^A:F(\overline{\mathnormal{f}})(\,_{\Gamma^{\prime}}{\mathnormal{A}})\xrightarrow{\simeq}\,_{\Gamma}{\mathnormal{A}}\rbrace_{f\in\operatorname{\mathbf{Sf}}(G)_1},

subject to a higher cocycle condition involving fillers of the desired diagrams. This would provide the missing rigorous construction of the equivariant ∞\infty-category, from which equivariant derived ∞\infty-categories and equivariant ∞\infty-categories of perverse sheaves can be obtained. The supplied text gives no evidence that the conjecture has been resolved.

References

Primary source

Geoff Vooys, “Equivariant Functors and Sheaves”, arXiv:2110.01130 (2023).

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