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UID:6573@i2m.univ-amu.fr
DTSTART;TZID=Europe/Paris:20210121T140000
DTEND;TZID=Europe/Paris:20210121T150000
DTSTAMP:20250118T133241Z
URL:https://www.i2m.univ-amu.fr/evenements/invariants-of-generic-normal-su
 rface-singularities/
SUMMARY:András Némethi (University of Budapest (ELTE)\, Hungary): Invaria
 nts of generic normal surface singularities
DESCRIPTION:András Némethi: We fix a topological type of a complex analyt
 ic normal surface singularity\, and will assume that the corresponding lin
 k (as oriented compact 3-manifold) is a rational homology sphere (equivale
 ntly\, the resolution graph is a tree of rational vertices). This topologi
 cal type might support several rather different analytic structures\, in t
 his talk we will consider a generic one (in the sense of Laufer).\nOne can
  expect that several discrete analytic invariants can be read concretely f
 rom the resolution graph: we will present such topological characterizatio
 ns for the geometric genus\, for cohomology groups of certain (natural) li
 ne bundles\, analytic semigroup\, maximal ideal cycle\, multiplicity.\nThe
  work is part a joint work and project with Janos Nagy. The main tool is t
 he generalization of the Abel map to the case of normal surfacesingulariti
 es.\nhttps://arxiv.org/abs/1910.03275\nSlides: https://eta.impa.br/icm_fil
 es/invited/section_6/IL.6.4.pdf\n
ATTACH;FMTTYPE=image/jpeg:https://www.i2m.univ-amu.fr/wp-content/uploads/2
 020/10/Andras_Nemethi.jpg
CATEGORIES:Groupe de travail,Singularités,Virtual event
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