Boardman's whole-plane obstruction group for Cartan-Eilenberg systems
Algebraic Topology
2022-06-22 v1
Abstract
Each extended Cartan--Eilenberg system gives rise to two exact couples and one spectral sequence. We show that the canonical colim-lim interchange morphism associated to is a surjection, and that its kernel is isomorphic to Boardman's whole-plane obstruction group , for each of the two exact couples.
Cite
@article{arxiv.1802.02785,
title = {Boardman's whole-plane obstruction group for Cartan-Eilenberg systems},
author = {Gard Olav Helle and John Rognes},
journal= {arXiv preprint arXiv:1802.02785},
year = {2022}
}