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UID:6954@i2m.univ-amu.fr
DTSTART;TZID=Europe/Paris:20191010T140000
DTEND;TZID=Europe/Paris:20191010T150000
DTSTAMP:20241120T202635Z
URL:https://www.i2m.univ-amu.fr/evenements/on-generalizations-of-the-milno
 r-number/
SUMMARY: (...): On generalizations of the Milnor number
DESCRIPTION:: Matthias ZACH (Leibniz Universtät Hannover)The Milnor number
  is central to the consideration of Isolated Hypersurface Singularities (I
 HS). It is both of topological and analytical nature as it describes the r
 ank of the vanishing homology as well as the length of the space of infini
 tesimal deformations up to R-equivalence.There are various generalizations
  of the Milnor number beyond the IHS case such as the L\\^e-Greuel formula
  for ICIS. Another instance is the Euler obstruction of a map investigated
  by Seade\, Tib{\\u a}r and Verjovsky. A priori\, this is based on a topol
 ogical construction\, but by virtue of the ideas around the "homological i
 ndex" described by Ebeling\, Gusein-Zade and Seade\, analytic formulas for
  its computation become available. We shall use these to describe ways to 
 determine the vanishing topology of Isolated Relative Complete Intersectio
 n Singularities (IRCIS).https://www.researchgate.net/scientific-contributi
 ons/2113188277_Matthias_Zach
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