Surface singularities and planar contact structures
نویسندگان
چکیده
Dans cet article on démontre que si une structure de contact sur variété dimension trois est portée par un livre ouvert à pages planaires, alors certaine configuration d’intersections n’apparaît dans l’homologie d’aucun ses remplissages minimaux. On plus les d’une telle ne contiennent pas surface symplectique genre positif. En appliquant ces obstructions aux structures canoniques bords des singularités normales surfaces, montre isolées surfaces l’espace complexe sont planaires seulement pour type A n . général, nous caractérisons complètement (par leurs graphes résolution) : précisément rationnelles avec cycle fondamental réduit (aussi appelées minimales). aussi la non-planarité tendues certains petits L-espaces Seifert ainsi celle obtenues construction Boothby–Wang appliquée De plus, tout groupe présentation finie le fibration Lefschetz fibres planaires.
منابع مشابه
Planar Open Book Decompositions and Contact Structures
In this note we observe that while all overtwisted contact structures on compact 3–manifolds are supported by planar open book decompositions, not all contact structures are. This has relevance to the Weinstein conjecture [1] and invariants of contact structures.
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ژورنال
عنوان ژورنال: Annales de l'Institut Fourier
سال: 2021
ISSN: ['0373-0956', '1777-5310']
DOI: https://doi.org/10.5802/aif.3384