Geometric fixed points of norms via the normalizer

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Let GG be a compact Lie group, let K<GK<G be finite, and let NN be the normalizer of KK in GG. Let XX be an input for the norm NeGN_e^G. Normalizer geometric fixed-point conjecture. There is a natural non-equivariant weak equivalence

(NeGX)ΦK≃∫N\G∫K\N×Te(N\G)X.(N_e^G X)^{\Phi K}\simeq \int_{N\backslash G}\int_{K\backslash N\times T_e(N\backslash G)}X.

This is the proposed replacement for factorization homology over K\GK\backslash G when that quotient is not parallelizable; the normalizer decomposition supplies the required framed pieces.

References

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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