BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Drupal iCal API//EN
X-WR-CALNAME:Events items teaser
X-WR-TIMEZONE:America/Toronto
BEGIN:VTIMEZONE
TZID:America/Toronto
X-LIC-LOCATION:America/Toronto
BEGIN:DAYLIGHT
TZNAME:EDT
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
DTSTART:20250309T070000
END:DAYLIGHT
BEGIN:STANDARD
TZNAME:EST
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
DTSTART:20251102T060000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
UID:69f57942add78
DTSTART;TZID=America/Toronto:20251215T153000
SEQUENCE:0
TRANSP:TRANSPARENT
DTEND;TZID=America/Toronto:20251215T163000
URL:https://uwaterloo.ca/pure-mathematics/events/geometry-and-topology-semi
 nar-43
SUMMARY:Geometry and Topology Seminar
CLASS:PUBLIC
DESCRIPTION:SERGEY GRIGORIAN\, UNIVERSITY OF TEXAS RIO GRANDE VALLEY\n\n_Ge
 ometric structures determined by the 7-sphere_\n\nThe 7-sphere is remarkab
 le not only for its rich topological and\nalgebraic properties but also fo
 r the special geometric structures it\nencodes. In this talk\, we explore 
 how the symmetries and stabilizer\nsubgroups of Spin(7) acting on the 7-sp
 here\, regarded as the set of\nunit octonions\, give rise to G2​-structu
 res on 7-manifolds\,\nSU(3)-structures on 6-manifolds\, and SU(2)-structur
 es on 5-manifolds.\nWe will trace how these structures arise naturally via
  the inclusions\nof Lie groups and are reflected in the geometry of sphere
  fibrations.\nThis perspective highlights the role of the 7-sphere as a un
 ifying\nobject in special geometry in dimensions from 5 to 8.\n\nMC 5417
DTSTAMP:20260502T041042Z
END:VEVENT
END:VCALENDAR