s-Fibrations
Shape Fibrations For Compact Hausdorff Spaces
Sheaves of metric lattices
Spaces of approximate fibrations on Hilbert cube manifolds
Stabile Foliations of 4-Manifolds by Closed Surfaces. I. Local Structure and Free Actions of Finite Cyclic and Dihedral Groups on Surfaces.
Stratifications of teardrops
Teardrops are generalizations of open mapping cylinders. We prove that the teardrop of a stratified approximate fibration X → Y × ℝ with X and Y homotopically stratified spaces is itself a homotopically stratified space (under mild hypothesis). This is applied to manifold stratified approximate fibrations between manifold stratified spaces in order to establish the realization part of a previously announced tubular neighborhood theory.