A theory of base motives
arXiv:0908.3124
Abstract
A category of correspondences based on Waldhausen A-theory has interesting analogies, in the context of differential topology, to categories of mixed Tate motives studied in arithmetic geometry. In particular, the Hopf object S \wedge_A S (regarding A(*) as a kind of local ring over the sphere spectrum) has some similarities to a motivic group for this category; its associated rational Lie algebra is free, on odd-degree generators...
Talk at the conference on p-adic Geometry and Homotopy Theory, Loen, Norway, 8 August 2009