Abstract
We show that the presence of a plastikstufe induces a certain degree of flexibility in contact manifolds of dimension . More precisely, we prove that every Legendrian knot whose complement contains a “nice” plastikstufe can be destabilized (and, as a consequence, is loose). As an application, it follows in certain situations that two nonisomorphic contact structures become isomorphic after connect-summing with a manifold containing a plastikstufe.
Citation
Emmy Murphy. Klaus Niederkrüger. Olga Plamenevskaya. András I Stipsicz. "Loose Legendrians and the plastikstufe." Geom. Topol. 17 (3) 1791 - 1814, 2013. https://doi.org/10.2140/gt.2013.17.1791
Information