Steenrod Operations in the Eilenberg-Moore Spectral Sequence.
Steenrod's Equivariant Moore Space Problem for Cohomologically Trivial Modules.
Stiefel-Whitney characteristic classes and parallelizability of Grassmann manifolds
Stiefel-Whitney classes of the flag manifold
Straightening cell decompositions of cusped hyperbolic 3-manifolds
Let be an oriented cusped hyperbolic 3-manifold and let be a topological ideal triangulation of . We give a characterization for to be isotopic to an ideal geodesic triangulation; moreover we give a characterization for to flatten into a partially flat triangulation. Finally we prove that straightening combinatorially equivalent topological ideal cell decompositions gives the same geodesic decomposition, up to isometry.
Strategies towards a disproof of the general Andrews-Curtis conjecture.
Stratification de Whitney et théorème de Bertini-Sard.
Stratifications of polynomial spaces
In the paper we construct some stratifications of the space of monic polynomials in real and complex cases. These stratifications depend on properties of roots of the polynomials on some given semialgebraic subset of R or C. We prove differential triviality of these stratifications. In the real case the proof is based on properties of the action of the group of interval exchange transformations on the set of all monic polynomials of some given degree. Finally we compare stratifications corresponding...
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.
Stratifikation von Quotientenmannigfaltigkeiten (in Charakteristik 0) und insbesondere der Modulmannigfaltigkeiten für Kurven.
String picture of gauge fields
The article reviews attempts to formulate the theory of gauge fields in terms of a string theory.
Strong Band sum and dichromatic invariants.
Strong cellularity and global asymptotic stability
Strong surjectivity of maps from 2-complexes into the 2-sphere
Given a model 2-complex K P of a group presentation P, we associate to it an integer matrix ΔP and we prove that a cellular map f: K P → S 2 is root free (is not strongly surjective) if and only if the diophantine linear system ΔP Y = (f) has an integer solution, here (f)is the so-called vector-degree of f
Strongly cellular subsets of
Strongly fillable contact 3-manifolds without Stein fillings.
Strongly geodesically automatic groups are hyperbolic.
Strongly homotopically stabile points
Strongly Invertible Knots Have Property R
Strongly invertible knots, rational-fold branched coverings, and hyperbolic spatial graphs.