The supercohomology cocycle of a fermionic fusion 2-category symmetry shifts with period 1, 2, or 4 under stacking with Spin(n)_1 and condensing, depending on the class κ, matching the image of the central charge map.
Adams spectral sequences for non-vector-bundle Thom spectra
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abstract
When $R$ is one of the spectra $\mathit{ku}$, $\mathit{ko}$, $\mathit{tmf}$, $\mathit{MTSpin}^c$, $\mathit{MTSpin}$, or $\mathit{MTString}$, there is a standard approach to computing twisted $R$-homology groups of a space $X$ with the Adams spectral sequence, by using a change-of-rings isomorphism to simplify the $E_2$-page. This approach requires the assumption that the twist comes from a vector bundle, i.e. the twist map $X\to B\mathrm{GL}_1(R)$ factors through $B\mathrm{O}$. We show this assumption is unnecessary by working with Baker-Lazarev's Adams spectral sequence of $R$-modules and computing its $E_2$-page for a large class of twists of these spectra. We then work through two example computations motivated by anomaly cancellation for supergravity theories.
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Mutual Influence of Symmetries and Topological Field Theories
The supercohomology cocycle of a fermionic fusion 2-category symmetry shifts with period 1, 2, or 4 under stacking with Spin(n)_1 and condensing, depending on the class κ, matching the image of the central charge map.