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SUMMARY:Bruno de Oliveira (University of Miami)
DTSTART:20230620T150000Z
DTEND:20230620T160000Z
DTSTAMP:20260423T022619Z
UID:Geolis/123
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/Geolis/123/"
 >On the geography of surfaces with big cotangent bundle</a>\nby Bruno de O
 liveira (University of Miami) as part of Geometria em Lisboa (IST)\n\n\nAb
 stract\nBigness of the cotangent bundle is a negativity property of the cu
 rvature which has important complex analytic consequences\, such as on the
  Kobayashi hyperbolicity properties and the GGL-conjecture for surfaces. W
 e present a birational criterion for a surface to have big cotangent bundl
 e that takes in account the singularities present in the minimal model and
  describe how it improves upon other criterions. The criterion allows cert
 ain geographic regions of surfaces of general type to have big cotangent b
 undle\, that other criterions can not reach. In this spirit\, we produce t
 he examples with the lowest slope $c_1^2/c_2$ having big cotangent bundle 
 that are currently known.\n
LOCATION:https://researchseminars.org/talk/Geolis/123/
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