Algebraic & Geometric Topology 12 (2012) 1667–1694

DOI: 10.2140/agt.2012.12.1667

Abstract

We prove fibrewise versions of classical theorems of Hopf and Leray–Samelson. Our results imply the fibrewise H-triviality after rationalization of a certain class of fibrewise H-spaces. They apply, in particular, to universal adjoint bundles. From this, we may retrieve a result of Crabb and Sutherland [Proc. London Math. Soc. 81 (2000) 747–768], which is used there as a crucial step in establishing their main finiteness result.

Keywords

fiberwise homotopy, H-space, Hopf Theorem, Leray–Samelson Theorem, adjoint bundle, gauge group, Sullivan minimal model

Mathematical Subject Classification

Primary: 55P62

Secondary: 55P45, 55R70

References

Publication

Received: 9 January 2012
Revised: 24 April 2012
Accepted: 5 June 2012
Published: 4 August 2012

Authors