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SUMMARY:Paul Laubie (IRMA Strasbourg)
DTSTART:20250131T140000Z
DTEND:20250131T150000Z
DTSTAMP:20260423T021648Z
UID:ACPMS/47
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/ACPMS/47/">V
 olume preservation of Butcher series methods from the operadic viewpoint</
 a>\nby Paul Laubie (IRMA Strasbourg) as part of Algebraic and Combinatoria
 l Perspectives in the Mathematical Sciences\n\n\nAbstract\nAfter a quick i
 ntroduction on Butcher series methods\, we recall the theorem of Iserles-Q
 uispel-Tse/Chartier-Murua on the nonexistence of volume preserving Butcher
  series methods. We will then give some algebraic and combinatorial recoll
 ections on operads\, and introduce the operads and the techniques appearin
 g in the new proof of this theorem. If time permits\, we will explain how 
 the operadic viewpoint also allows us to recover the full classification o
 f volume preserving aromatic Butcher series methods\, which was first comp
 uted by Laurent\, McLachlan\, Munthe-Kaas\, and Verdier.\n
LOCATION:https://researchseminars.org/talk/ACPMS/47/
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