The norm–factorization homology comparison for compact Lie groups

From papers

Let GG be a compact Lie group, let RR be a cofibrant commutative algebra, and let UU and UGU^{G} denote the relevant complete universes. Write NeGRN_e^G R for the norm and IUGU(RG)I_{U^{G}}^{U}(R\boxtimes G) for change of universe applied to the tensor construction. Norm–factorization homology conjecture. There is a natural weak equivalence of genuine GG-spectra

NeGRIUGU(RG).N_e^G R \simeq I_{U^{G}}^{U}(R \otimes G).

Here IUGU(G)I_{U^{G}}^{U}(-\otimes G) is left adjoint to the forgetful functor from commutative ring orthogonal GG-spectra indexed on UU to commutative ring spectra. This conjecture identifies the norm with the corresponding factorization-homology construction after point-set change of universe.

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Primary source

Andrew J. Blumberg, Michael A. Hill and Michael A. Mandell, “Norms for compact Lie groups in equivariant stable homotopy theory”, arXiv:2212.11404 (2022).

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