Higher torsion and secondary transfer of unipotent bundles
arXiv:1212.6578 · doi:10.2140/gt.2016.20.1807
Abstract
Given a unipotent bundle of smooth manifolds we construct its secondary transfer map and show that this map determines the higher smooth torsion of the bundle. This approach to higher torsion provides a new perspective on some of its properties. In particular it yields in a natural way a formula for torsion of a composition of two bundles.
48 pages, final version to appear in Geometry and Topology