BEGIN:VCALENDAR
VERSION:2.0
PRODID:www.dresden-science-calendar.de
METHOD:PUBLISH
CALSCALE:GREGORIAN
X-MICROSOFT-CALSCALE:GREGORIAN
X-WR-TIMEZONE:Europe/Berlin
BEGIN:VTIMEZONE
TZID:Europe/Berlin
X-LIC-LOCATION:Europe/Berlin
BEGIN:DAYLIGHT
TZNAME:CEST
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
DTSTART:19810329T030000
RRULE:FREQ=YEARLY;INTERVAL=1;BYMONTH=3;BYDAY=-1SU
END:DAYLIGHT
BEGIN:STANDARD
TZNAME:CET
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
DTSTART:19961027T030000
RRULE:FREQ=YEARLY;INTERVAL=1;BYMONTH=10;BYDAY=-1SU
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
UID:DSC-22544
DTSTART;TZID=Europe/Berlin:20260109T140000
SEQUENCE:1767940787
TRANSP:OPAQUE
DTEND;TZID=Europe/Berlin:20260109T150000
URL:https://dresden-science-calendar.org/calendar/de/detail/22544
LOCATION:MPI-CBG\, Pfotenhauerstraße 10801307 Dresden
SUMMARY:Sturmfels: Lines in 3-Space
CLASS:PUBLIC
DESCRIPTION:Speaker: Bernd Sturmfels\nInstitute of Speaker: MPI MiS\nTopics
 :\n\n Location:\n  Name: MPI-CBG (MPI-CBG CSBD SR Top Floor (VC))\n  Stree
 t: Pfotenhauerstraße 108\n  City: 01307 Dresden\n  Phone: +49 351 210-0\n
   Fax: +49 351 210-2000\nDescription: We consider configurations of lines 
 in 3-space with incidences prescribed by a graph. This defines a subvariet
 y in a product of Grassmannians. Leveraging a connection with rigidity the
 ory in the plane\, for any graph\, we determine the dimension of the incid
 ence variety and characterize when it is irreducible or a complete interse
 ction. We study its multidegree and the family of Schubert problems it enc
 odes. Our spanning-tree coordinates enable efficient symbolic computations
 . We also provide numerical irreducible decompositions for incidence varie
 ties with up to eight lines. These constructions with lines play a key rol
 e in the Landau analysis of scattering amplitudes in particle physics.
DTSTAMP:20260730T113641Z
CREATED:20260106T063511Z
LAST-MODIFIED:20260109T063947Z
END:VEVENT
END:VCALENDAR