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UID:6429@i2m.univ-amu.fr
DTSTART;TZID=Europe/Paris:20210430T110000
DTEND;TZID=Europe/Paris:20210430T120000
DTSTAMP:20241120T201429Z
URL:https://www.i2m.univ-amu.fr/evenements/cohomologie-des-varietes-moment
 -angle/
SUMMARY:Roman Krutowski (University of California (UCLA)\, Los Angeles): Co
 homologie des variétés moment-angle
DESCRIPTION:Roman Krutowski: Basic cohomology of moment-angle manifolds\nI 
 will start by reminding the construction of toric varieties. These are alg
 ebraic varieties associated with rational fans. In the case of a non-ratio
 nal fan\, there is no such pleasant way to define associated manifold with
  it. However\, we still can find some geometric structures. Namely\, for a
  complete fan Σ there is a certain foliation  on the so-called moment-ang
 le manifold ZΣ. I will explain in what sense these foliations generalize 
 toric varieties.\nFrom this perspective\, basic cohomology rings of these 
 foliations may be regarded as generalized cohomology rings of toric variet
 ies. During the talk\, i am going to present a result on the calculation o
 f basic Dolbeault cohomology of these foliations generalizing the Danilov 
 theorem for toric varieties.\narXiv\n\n\n\n\n\n\n\n\n\n\n Lien zoom : \n\n
 https://univ-amu-fr.zoom.us/j/98237002819?pwd=aXE1YTdSVEsrS3FkRnFlUFNqWFY5
 Zz09\n\n
ATTACH;FMTTYPE=image/jpeg:https://www.i2m.univ-amu.fr/wp-content/uploads/2
 021/04/Roman_Krutowski.jpg
CATEGORIES:Séminaire,Hybrid,Rauzy
LOCATION:St Charles - FRUMAM\, 3\, place Victor Hugo\, Marseille\, 13003\, 
 France
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=3\, place Victor Hugo\, Mar
 seille\, 13003\, France;X-APPLE-RADIUS=100;X-TITLE=St Charles - FRUMAM:geo
 :0,0
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DTSTART:20210328T030000
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