Real equivariant conjectures for truncated Brown–Peterson spectra

Work at p=2p=2. Let σ\sigma be the sign representation, ρ=σ+1\rho=\sigma+1 the regular representation, and let T(n)RT(n)_\mathbf{R} and X(2n)RX(2^n)_\mathbf{R} be the Real spectra defined from the equivariant Quillen summand. Let BPnR\mathrm{BP}\langle n\rangle_\mathbf{R} be the Real truncated Brown–Peterson spectrum, and use the relative Real topological Hochschild and periodic homology constructions in the statement.

Real equivariant conjectures. The six listed assertions in the source hold: the required EρU(1)R\mathbf{E}_{\rho}\rtimes\mathrm{U}(1)_\mathbf{R}-algebra and splitting structures exist; the two displayed relative THHR\mathrm{THH}_\mathbf{R} equivalences and detection statement hold; the equivariant spaces K~n\widetilde K_n and their fibrations have the stated properties; the equivariant topological Sen cofiber sequence exists; the asserted parametrized-Tate equivalence for TPR\mathrm{TP}_\mathbf{R} holds; and, for a 22-complete animated commutative ring with trivial Z/2\mathbf{Z}/2-action, the stated filtration with graded pieces (\hat{{\mathbbl{\Delta}}}_{R/\mathbf{Z}[\\![q-1]\\!]}^\wedge_2)[2i] exists. These claims extend the paper's constructions to Real/equivariant settings, but no resolution is supplied.

Sources & referencesView supporting material

Primary source

Sanath K Devalapurkar, “Topological Hochschild homology, truncated Brown-Peterson spectra, and a topological Sen operator”, arXiv:2303.17344 (2023).

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