6 citations · 14 across the 9 of their papers we have counts for
10 papers
A Seifert algorithm for lamination links
Ulrich Oertel
We generalize H. Seifert's algorithm for finding a Seifert surface for a knot or link. The generalization applies to "framed oriented measured lamination links." For knots, a Seife…
Lamination links in 3-manifolds
Ulrich Oertel
We introduce and define "oriented framed measured lamination links" in a 3-manifold . These generalize oriented framed links in 3-manifolds, and are confined to 2-dimensional im…
Finite height lamination spaces for surfaces
Ulrich Oertel
We describe spaces of essential finite height (measured) laminations in a surface using a parameter space we call , an ordered semi-ring. We show that for every fini…
Measured lamination spaces for surface pairs
Ulrich Oertel
We calculate a projective space of essential measured laminations in a surface pair, which will be used in another paper to help describe spaces of "finite height laminations."
Essential disks and semi-essential surfaces in 3-manifolds
Charalampos Charitos, Ulrich Oertel
If M is a manifold with compressible boundary, we analyze essential disks in M, as well as incompressible, but not necessarily boundary incompressible, surfaces in M. We are most i…
Mapping class groups of compression bodies and 3-manifolds
Ulrich Oertel
We analyze the mapping class group of extendible automorphisms of the exterior boundary W of a compression body of dimension 3 or 4, which extend over the compression body (Q,V), w…