BEGIN:VCALENDAR VERSION:2.0 PRODID:-//132.216.98.100//NONSGML kigkonsult.se iCalcreator 2.20.4// BEGIN:VEVENT UID:20260306T091831EST-1347ekejcl@132.216.98.100 DTSTAMP:20260306T141831Z DESCRIPTION:TITLE/TITRE\n\nThe unknotting number\n  \n\nRÉSUMÉ / ABSTRACT\n \nThe unknotting number of a knot is one of the simplest classical knot in variants to define: it simply counts the minimum times a knot must pass th rough itself in order to become unknotted. Despite this simple definition\ , the unknotting number is often fiendishly difficult to compute. Beginnin g from the definition\, I will discuss some of what is known about this in variant and highlight some of the many things that we still do not underst and.\n\nPLACE / LIEU \n Hybride - CRM\, Salle / Room 5340\, Pavillon André Aisenstadt\n\nLien ZOOM Link\n DTSTART:20260220T203000Z DTEND:20260220T213000Z SUMMARY:Duncan McCoy (Université du Québec à Montréal) URL:/mathstat/channels/event/duncan-mccoy-universite-d u-quebec-montreal-371292 END:VEVENT END:VCALENDAR