The K(1)-local Anderson duality conjecture for locally compact K-theory
The K(1)-local Anderson duality conjecture for locally compact K-theory
Let denote non-connective -theory. Let be an odd prime, let be a number field, and let be a finite set of finite places of such that . Write and for the locally compact categories appearing in the fiber sequences, and let denote the -adic Anderson dual. The K(1)-local Anderson duality conjecture. There is an equivalence of fiber sequences
\xymatrix{ L_{K(1)}K(\mathcal{O}_{S}) \ar[r] \ar@{=>}[d] & L_{K(1)}K(\mathsf{LC}\mathcal{O}_{S,ad}) \ar[r] \ar@{<=>}[d] & L_{K(1)}K(\mathsf{LC}\mathcal{O}_{S}) \\ I_{\mathbf{Z}_{p}}L_{K(1)}K(\mathsf{LC}\mathcal{O}_{S}) \ar[r] & I_{\mathbf{Z}_{p}}L_{K(1)}K(\mathsf{LC}\mathcal{O}_{S,ad}) \ar[r] & I_{\mathbf{Z}_{p}}L_{K(1)}K(\mathcal{O}_{S}) \ar@{=>}[u] }where the lower row is the Anderson dual of the top row, perhaps up to sign. Here an equivalence of fiber sequences means that the underlying bi-Cartesian square of spectra, including the null homotopy, is equipped with an equivalence to the dual square. The conjecture refines the established objectwise -local duality and remains unproved because making the equivalence of the full fiber sequences, including its coherences, is difficult.
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Sources & referencesView supporting material
Primary source
Oliver Braunling, “Local compactness as the K(1)-local dual of finite generation”, arXiv:2301.05943 (2023).
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