Nonshrinkable "cell-like" decompositions ofs

Philip Bowers
1986 Pacific Journal of Mathematics  
Fine homotopy equivalences from s onto complete separable AR's are constructed that are analogs of certain cell-like maps defined on Euclidean space. In particular, (i) there is a fine homotopy equivalence / from s onto a complete separable ARX such that the collection of nondegenerate values N f of / is a singleton whose pre-image under / is a 1-dimensional AR widely embedded in s, and (ii) there is a fine homotopy equivalence g from s onto a complete separable AR Y such that N g is a Cantor
more » ... t and every nondegenerate fiber of g is a tame Z-set in s. Neither X nor Y is homeomorphic to s but both become homeomorphic to s upon multiplication by a certain complete 1-dimensional AR.
doi:10.2140/pjm.1986.124.257 fatcat:jin3cqgpvjayzk5gjzarsarb2m