English

Adams spectral sequences for non-vector-bundle Thom spectra

Algebraic Topology 2025-09-08 v2 High Energy Physics - Theory

Abstract

When RR is one of the spectra ku\mathit{ku}, ko\mathit{ko}, tmf\mathit{tmf}, MTSpinc\mathit{MTSpin}^c, MTSpin\mathit{MTSpin}, or MTString\mathit{MTString}, there is a standard approach to computing twisted RR-homology groups of a space XX with the Adams spectral sequence, by using a change-of-rings isomorphism to simplify the E2E_2-page. This approach requires the assumption that the twist comes from a vector bundle, i.e. the twist map XBGL1(R)X\to B\mathrm{GL}_1(R) factors through BOB\mathrm{O}. We show this assumption is unnecessary by working with Baker-Lazarev's Adams spectral sequence of RR-modules and computing its E2E_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.

Keywords

Cite

@article{arxiv.2305.01678,
  title  = {Adams spectral sequences for non-vector-bundle Thom spectra},
  author = {Arun Debray and Matthew Yu},
  journal= {arXiv preprint arXiv:2305.01678},
  year   = {2025}
}

Comments

50 pages, comments welcome

R2 v1 2026-06-28T10:23:49.527Z