Point-independence conjecture for tempered D-modules on Bun_G

From papers

Let XX be a smooth complete curve, let GG be a reductive group, and let xXx\in X. The category \Dmod(\BunG)\Dmod(\Bun_G) is tensored over \QCoh(\cg/(\cG×\BGm))\QCoh(\cg^*/(\cG\times \BG_m)), giving each object a support \onsuppx(\CM)\on{supp}^{x}(\CM). Define

\Dmod\ontempx(\BunG):=\CM\Dmod(\BunG):\onsuppx(\CM)=0.\Dmod^x_{\on{temp}}(\Bun_G):=\\{\CM\in\Dmod(\Bun_G):\on{supp}^x(\CM)=\\{0\\}\\}.

Point-independence conjecture. The subcategory \Dmod\ontempx(\BunG)\Dmod(\BunG)\Dmod^x_{\on{temp}}(\Bun_G)\subset\Dmod(\Bun_G) is independent of the choice of the point xXx\in X. This is deduced in the source as a consequence of the geometric Langlands conjecture and its compatibility with geometric Satake, so it remains open there.

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Sources & referencesView supporting material

Primary source

Dima Arinkin and Dennis Gaitsgory, “Singular support of coherent sheaves, and the geometric Langlands conjecture”, arXiv:1201.6343 (2014).

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