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UID:5962@i2m.univ-amu.fr
DTSTART;TZID=Europe/Paris:20220922T110000
DTEND;TZID=Europe/Paris:20220922T120000
DTSTAMP:20241120T200705Z
URL:https://www.i2m.univ-amu.fr/evenements/foliated-and-compactly-supporte
 d-isotopies-of-regular-neighbourhoods/
SUMMARY:Sergiy Maksymenko (Institute of Mathematics of the National Academy
  of Sciences of Ukraine): Foliated and compactly supported isotopies of re
 gular neighbourhoods
DESCRIPTION:Sergiy Maksymenko: Exposé sur Zoom avec transmission live dans
  la salle des séminaires.\nAbstract:\nLet F be a foliation with a "singul
 ar" submanifold B on a smooth manifold M and E be a regular neighbourhood 
 of B in M.\nUnder certain "homogeneity" assumptions on F near B it is prov
 ed that every leaf preserving diffeomorphism h of M is isotopic via a leaf
  preserving isotopy to a diffeomorphism which coincides with some vector b
 undle morphism of E near B. This result is mutually a foliated and compact
 ly supported variant of a well known statement that every diffeomorphism h
  of Rn fixing the origin is isotopic to the linear isomorphism induced by
  its Jacobi matrix of h at 0.\nI also present examples of computation of t
 he homotopy type of the group of leaf preserving diffeomorphisms of certai
 n simple Morse-Bott foliations on lens spaces.\nThe talk is based on the r
 ecent preprint\nhttps://arxiv.org/abs/2208.05876\nwith Oleksandra Khokhliu
 k\n\nCoordonnées réunion Zoom:\n\nSujet : Séminaire de Géométrie et 
 Topologie de Marseille\nHeure : 22 sept. 2022 10:30 AM Paris\n\nParticipe
 r à la réunion Zoom\nhttps://univ-amu-fr.zoom.us/j/88486591060?pwd=SHRTS
 UNvai81TnNweW0yaitzYjh6QT09\n\nID de réunion : 884 8659 1060\nCode secre
 t : voir annonce par mail
ATTACH;FMTTYPE=image/jpeg:https://www.i2m.univ-amu.fr/wp-content/uploads/2
 022/09/Sergiy_Maksymenko.png
CATEGORIES:Séminaire,Géométrie et Topologie de Marseille
LOCATION:Saint-Charles - FRUMAM  (2ème étage)\, 3 Place Victor Hugo\, Mar
 seille\, 13003\, France
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=3 Place Victor Hugo\, Marse
 ille\, 13003\, France;X-APPLE-RADIUS=100;X-TITLE=Saint-Charles - FRUMAM  (
 2ème étage):geo:0,0
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