Untwisted multiplication conjecture for derivative spectra

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Let F ⁣:J→S∗F \colon \mathcal{J} \to \mathcal{S}_* be lax symmetric monoidal, and let DO(n)D_{O(n)} denote the dualizing spectrum of O(n)O(n). Define

Θn~F:=ΘnF⊗DO(n)∨.\widetilde{\Theta^n}F:= \Theta^nF \otimes D_{O(n)}^\vee.

Untwisted multiplication conjecture. The maps constructed from the monoidal structure make Θn~F\widetilde{\Theta^n}F into a nonunital E∞E_\infty-ring spectrum.

This conjecture asserts that twisting the derivative spectrum by the inverse dualizing spectrum removes the equivariant twist from the multiplication. The preceding result supplies the underlying multiplication maps and the source subsequently notes that the conjecture would imply the corresponding statement that Θ1F\Theta^1F is a nonunital E∞E_\infty-ring spectrum.

References

Primary source

Leon Hendrian, “Monoidal Structures in Orthogonal Calculus”, arXiv:2309.15058 (2024).

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