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SUMMARY:Integration of Lie type algebras. [Oberseminar Darstellungstheorie
 ]
DTSTART:20260123T111500Z
DTEND:20260123T130000Z
DTSTAMP:20260308T042300Z
UID:indico-event-1083@math-events.uni-bonn.de
DESCRIPTION:Speakers: Bruno Vallette (Sorbonne)\n\nThe Baker—Campbell—
 Hausdorff (BCH) formula is the universal formula for integrating Lie algeb
 ras. It is however quite involved\, due to the fact that it sits inside th
 e intricate free Lie algebra for instance. For Lie brackets that come from
  the skew-symmetrization of binary products\, one can sometimes produce mo
 re effective formulas\, which admit direct applications to the deformation
  theory of operadic algebraic structures. For weak Lie brackets\, that is 
 L_infinity-algebras\, one can use ideas from homotopy theory (Kan complexe
 s) and rational homotopy theory (Sullivan algebras) to produce efficient h
 igher BCH formulas. This takes the form of a universal algebraic infinity-
 groupoid\, that is defined by a structure and not a property. \n\nhttps:/
 /math-events.uni-bonn.de/event/1083/
LOCATION:Endenicher Allee 60/Lipschitz-Saal (Mathezentrum)
URL:https://math-events.uni-bonn.de/event/1083/
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