paper

A simple universal property of Thom ring spectra

arXiv:1411.7988 · doi:10.1112/topo.12084

Abstract

We give a simple universal property of the multiplicative structure on the Thom spectrum of an -fold loop map, obtained as a special case of a characterization of the algebra structure on the colimit of a lax -monoidal functor. This allows us to relate Thom spectra to -algebras of a given characteristic in the sense of Szymik. As applications, we recover the Hopkins--Mahowald theorem realizing and as Thom spectra, and compute the topological Hochschild homology and the cotangent complex of various Thom spectra.

Updated to correct a small error found by Qi Zhu in Corollary 3.9. Thanks, Qi!

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