Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8904241 | Topology and its Applications | 2018 | 15 Pages |
Abstract
Let X be a CW complex, E(X) the group of homotopy classes of homotopy self-equivalences of X and Ψ:E(X)âaut(Hâ(X,Z)) the map sending [α] to Hâ(α). This paper deals with the following question: Characterize fââaut(Hâ(X,Z)) such that fââImΨ. For the R-localized XR of an (n+1)-connected and (3n+2)-dimensional CW-complex X; nâ¥2, where R is a certain subring of Q we define the notion of strong automorphism in aut(Hâ(X,Z)), in term of the Whitehead exact sequence of the Anick model of XR and we show that fââImΦ if and only if fâ is a strong automorphism. Consequently we prove that E(XR)(Eâ(X))Râ
B(XR), where Eâ(X) is the subgroup of the elements that induce the identity on homology and B(XR) is the subgroup of the strong automorphisms.
Keywords
Related Topics
Physical Sciences and Engineering
Mathematics
Geometry and Topology
Authors
Mahmoud Benkhalifa,