Compatibility of the global-space functor with the presheaf equivalence

Let OrbSpc\mathrm{OrbSpc} be the category of orbispaces, let OrbSpc\overline{\mathrm{OrbSpc}} be its enlargement obtained by gluing cells under arbitrary maps, and let GloSpc\mathrm{GloSpc} be the category of global spaces. The paper considers an equivalence

OrbSpcGloSpc\overline{\mathrm{OrbSpc}}\simeq\mathrm{GloSpc}

constructed from results of Gepner--Henriques and Schwede. Global-space compatibility conjecture. The restriction of this equivalence to the full subcategory OrbSpcOrbSpc\mathrm{OrbSpc}\subseteq\overline{\mathrm{OrbSpc}} coincides with the functor sending an orbispace XX to EmbX(E,)\operatorname{Emb}_X(E,-) for a faithful vector bundle EE over XX. This would identify the geometric global-space construction with the presheaf-theoretic equivalence.

Sources & referencesView supporting material

Primary source

John Pardon, “Orbifold bordism and duality for finite orbispectra”, arXiv:2006.12702 (2023).

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