Selection Rules for Topology Change
Semigroups and the n-sphere.
Separating, Incompressible Surfaces in 3-Manifolds.
s-Fibrations
Shape domination and embedding up to shape
Shrinking of toroidal decomposition spaces
Given a sequence of oriented links L¹,L²,L³,... each of which has a distinguished, unknotted component, there is a decomposition space 𝓓 of S³ naturally associated to it, which is constructed as the components of the intersection of an infinite sequence of nested solid tori. The Bing and Whitehead continua are simple, well known examples. We give a necessary and sufficient criterion to determine whether 𝓓 is shrinkable, generalising previous work of F. Ancel and M. Starbird and others. This criterion...
Simplexwise linear and piecewise linear near self-homeomorphisms of surfaces
Singular fibers of stable maps and signatures of 4-manifolds.
Singularité générique des applications différentiables de la 2-sphère dans une 3-variété différentiable
Dans cet article nous étudions les singularités des applications différentiables de la deux sphère dans une trois variété avec les méthodes de transversalité et nous utilisons les résultats obtenus pour reprendre dans le cas différentiable, les démonstrations de Papakyriakopoulos et de Whitehead du théorème de la sphère.
Skein quantization of Poisson algebras of loops on surfaces
Slippery Cantor sets in
Small knots in Seifert fibered 3-manifolds.
Smooth spheres in IR4 with four critical points are standard.
Smooth sturctures on algebraic surfaces with cyclic fundamental group.
Smoothing 4-Manifolds.
Smoothness and geometry of boundaries associated to skeletal structures I: sufficient conditions for smoothness
We introduce a skeletal structure in , which is an - dimensional Whitney stratified set on which is defined a multivalued “radial vector field” . This is an extension of notion of the Blum medial axis of a region in with generic smooth boundary. For such a skeletal structure there is defined an “associated boundary” . We introduce geometric invariants of the radial vector field on and a “radial flow” from to . Together these allow us to provide sufficient numerical conditions for...
Solution of the problem of describing minimal Seifert manifolds.
Solvable systems of equations modeled on some spines of 3-manifolds.
Some applications of Coincidence theory.
Some partitions consisting of Jordan curves.