Augmented Gamma-spaces, the stable rank filtration, and a bu-analogue of the Whitehead Conjecture

Details Augmented Gamma-spaces, the stable rank filtration, and a bu-analogue of the Whitehead Conjecture Augmented Gamma-spaces, the stable rank filtration, and a bu-analogue of the Whitehead Conjecture

2009-02-16

arxiv.org/abs/0902.2564v2

Mathematics

Algebraic Topology

Minor revision of first submitted version

Scientific paper

We explore connections between our earlier work, in which we constructed spectra that interpolate between bu and HZ, and earlier work of Kuhn and Priddy on the Whitehead conjecture and of Rognes on the stable rank filtration in algebraic K-theory. We construct a "chain complex of spectra" that is a bu-analogue of an auxiliary complex used by Kuhn-Priddy; we conjecture that this chain complex is "exact"; and we give some supporting evidence. We tie this to work of Rognes by showing that our auxiliary complex can be constructed in terms of the stable rank filtration. As a by-product, we verify for the case of topological complex K-theory a conjecture made by Rognes about the connectivity (for certain rings) of the filtration subquotients of the stable rank filtration of algebraic K-theory.

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