BEGIN:VCALENDAR
VERSION:2.0
PRODID:researchseminars.org
CALSCALE:GREGORIAN
X-WR-CALNAME:researchseminars.org
BEGIN:VEVENT
SUMMARY:Andreas Knauf (Friedrich-Alexander-Universität Erlangen-Nürnberg
 )
DTSTART:20200624T150000Z
DTEND:20200624T160000Z
DTSTAMP:20260423T023047Z
UID:DinAmicI/8
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/DinAmicI/8/"
 >Asymptotic velocity for scattering particles</a>\nby Andreas Knauf (Fried
 rich-Alexander-Universität Erlangen-Nürnberg) as part of DinAmicI: Anoth
 er Internet Seminar\n\n\nAbstract\nPartly with Jacques Fejoz\, Richard Mon
 tgomery\, Stefan Fleischer and Manuel Quaschner.\n\nThe past and future of
  scattering particle systems is partly determined by their asymptotic velo
 city\, that is\, the Cesàro limit of the velocity. That this exists for b
 ounded interactions and all initial conditions\, is part of a statement so
 metimes called ‘asymptotic completeness’. The same statement does not 
 apply to individual initial conditions in celestial mechanics. However\, a
 t least for up to four particles\, nonexistence of asymptotic velocity is 
 a measure zero phenomenon. We explain some new ideas connected with the pr
 oof (Poincaré section techniques for wandering sets\, non-deterministic p
 article systems\, and walks on a poset of set partitions).\n\nZoom link: h
 ttps://unipd.zoom.us/j/96933860238?pwd=c1pEamVCOVJNci9MVThZWWlzeGt6UT09\n
LOCATION:https://researchseminars.org/talk/DinAmicI/8/
END:VEVENT
END:VCALENDAR