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arxiv: 1102.0914 · v2 · pith:6KU4U4R2new · submitted 2011-02-04 · 🧮 math.SG

Knotted Legendrian surfaces with few Reeb chords

classification 🧮 math.SG
keywords legendrianchordsembeddingsreebsurfacesadmitaugmentationcannot
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For $g>0$, we construct $g+1$ Legendrian embeddings of a surface of genus $g$ into $J^1(R^2)=R^5$ which lie in pairwise distinct Legendrian isotopy classes and which all have $g+1$ transverse Reeb chords ($g+1$ is the conjecturally minimal number of chords). Furthermore, for $g$ of the $g+1$ embeddings the Legendrian contact homology DGA does not admit any augmentation over $Z/2Z$, and hence cannot be linearized. We also investigate these surfaces from the point of view of the theory of generating families. Finally, we consider Legendrian spheres and planes in $J^1(S^2)$ from a similar perspective.

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