78 citations · 115 across the 6 of their papers we have counts for
6 papers
Vanishing cycles of symplectic foliations
Fabio Gironella, Klaus Niederkrüger, Lauran Toussaint
Several results in recent years have shown that the usual generalizations of taut foliations to higher dimensions, based only on topological concepts, lead to a theory that lacks t…
Higher dimensional contact topology via holomorphic disks
Klaus Niederkrüger
These notes are based on a course that took place at the Université de Nantes in June 2011 during the "Trimester on Contact and Symplectic Topology". We will explain how holomorphi…
Every contact manifold can be given a non-fillable contact structure
Klaus Niederkrüger, Otto van Koert
Recently Francisco Presas Mata constructed the first examples of closed contact manifolds of dimension larger than 3 that contain a plastikstufe, and hence are non-fillable. Using…
The plastikstufe - a generalization of the overtwisted disk to higher dimensions
Klaus Niederkruger
In this article, we give a first prototype-definition of overtwistedness in higher dimensions. According to this definition, a contact manifold is called "overtwisted" if it contai…
5-dimensional contact SO(3)-manifolds and Dehn twists
Klaus Niederkrüger
In this paper the 5-dimensional contact SO(3)-manifolds are classified up to equivariant contactomorphisms. The construction of such manifolds with singular orbits requires the use…
Open book decompositions for contact structures on Brieskorn manifolds
Otto van Koert, Klaus Niederkrüger
In this paper, we give an open book decomposition for the contact structures on some Brieskorn manifolds, in particular for the contact structures of Ustilovsky. The decomposition…