1-dimensional phenomena in cell-like mappings on 3-manifolds
1-dimensional phenomena in cell-like mappings on 3-manifolds
Two 1-dimensional phenomena are studied.One resides in the 3manifold domain of a cell-like map /: M 3 -> Y and consists of an infinite 1-skeleton X on which / is 1-1; if, in addition, the nondegeneracy set of/ misses a dense natural embedding in A/ is a 3-manifold except possibly …