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:20210314T070000 END:DAYLIGHT BEGIN:STANDARD TZNAME:EST TZOFFSETFROM:-0400 TZOFFSETTO:-0500 DTSTART:20201101T060000 END:STANDARD END:VTIMEZONE BEGIN:VEVENT UID:682ce2224ed33 DTSTART;TZID=America/Toronto:20210326T143000 SEQUENCE:0 TRANSP:TRANSPARENT DTEND;TZID=America/Toronto:20210326T143000 URL:/pure-mathematics/events/geometry-topology-seminar- 87 SUMMARY:Geometry & Topology Seminar CLASS:PUBLIC DESCRIPTION:Summary \n\nOĞUZ ŞAVK\, BOGAZIÇI UNIVERSITY\n\n\"Classica l and new plumbings bounding contractible manifolds and\nhomology balls\"\ n\nA central problem in low-dimensional topology asks which homology\n3-sp heres bound contractible 4-manifolds and homology 4-balls. In this\ntalk\, we address this problem for plumbed 3-manifolds and we present\nthe class ical and new results together. Our approach is based on\nMazur’s famous argument which provides a unification of all results\nin a fairly simple w ay.\n DTSTAMP:20250520T201218Z END:VEVENT END:VCALENDAR