Strict cyclotomic Deligne conjecture
Strict cyclotomic Deligne conjecture
For every natural number , let be the cylinder-operad space, let and be the associated spectra, and let be the cyclotomic structure map. Let be the -equivariant homeomorphism induced by taking the -fold unbranched cover of the cylinder and conformally rescaling it.
Strict cyclotomic Deligne conjecture. For every natural number , the following diagram of genuine -spectra commutes:
\begin{tikzcd} \Sigma^\infty_+\mathcal{O}^{\cap}(n)\wedge THC(A)^{\wedge n}\wedge THH(A) \ar[r] \ar[d, "\Sigma^\infty_+\phi^{\cap}_m \wedge \Delta_m \wedge \phi_m"]& THH(A)\ar[d, "\phi_m"] \\ (\Sigma^\infty_+\mathcal{O}^{\cap}(nm)\wedge THC(A)^{\wedge nm}\wedge THH(A))^{\Phi C_m} \ar[r]& THH(A)^{\Phi C_m}. \end{tikzcd}Here the -action on is trivial, and the left vertical map uses the lax monoidal structure map for geometric fixed points. The statement is the strict genuine-equivariant version; weaker variants replace geometric fixed points by Tate fixed points and require commutativity only up to coherent homotopy. The source presents it conditionally on the preceding colored-operad statement.
Sources & referencesView supporting material
Primary source
Semon Rezchikov, “Noncommutative Cartier Formulae”, arXiv:2607.05360 (2026).
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