The Satake compatibility conjecture for the spectral action
The Satake compatibility conjecture for the spectral action
Let be the algebra acting on the compactly supported cohomology of the Shimura variety, and let \operatorname{H}_c(\operatorname{Sh}_{\mu,\overline{\mathbb{F}}_v,\mathbb{Q}_\ell) denote that cohomology. The classical Satake isomorphism identifies with the relevant spherical Hecke algebra. Satake compatibility conjecture. Under the Satake isomorphism, the action of in the preceding theorem coincides with the usual Hecke algebra action on
This is presented as the analogue of V. Lafforgue's theorem and would identify the geometric spectral action with the classical Hecke action. The source gives no resolution.
Sources & referencesView supporting material
Primary source
Liang Xiao and Xinwen Zhu, “Cycles on Shimura varieties via geometric Satake”, arXiv:1707.05700 (2017).
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