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.

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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