2 citations · 2 across the 2 of their papers we have counts for
2 papers
math.GT2003
Incompressible maps of surfaces and Dehn filling
Ulrich Oertel
We prove results showing that the existence of essential maps of surfaces in a manifold M' obtained from a 3-manifold M by Dehn filling implies the existence of essential maps of s…
math.GT2003★ 2 cited
A contamination carrying criterion for branched surfaces
Ulrich Oertel, Jacek Swiatkowski
A contamination in a 3-manifold is an object interpolating between the contact structure and the lamination. Contaminations seem to provide a link between 3-dimensional contact geo…