BEGIN:VCALENDAR VERSION:2.0 PRODID:-//132.216.98.100//NONSGML kigkonsult.se iCalcreator 2.20.4// BEGIN:VEVENT UID:20251006T183350EDT-7416zJ20mR@132.216.98.100 DTSTAMP:20251006T223350Z DESCRIPTION:On intersections of conjugate subgroups.\n\nWe define a new inv ariant of a conjugacy class of subgroups which we call the weak width and prove that a quasiconvex subgroup of a negatively curved group has finite weak width in the ambient group. Utilizing the coset graph and the geodesi c core of a subgroup we give an explicit algorithm for constructing a fini te generating set for an intersection of a quasiconvex sub-group of a nega tively curved group with a conjugate. Using that algorithm we construct al gorithms for computing the weak width\, the width and the height of a quas iconvex subgroup of a negatively curved group. These algorithms decide if a quasiconvex subgroup of a negatively curved group is almost malnormal in the ambient group.\n DTSTART:20161026T190000Z DTEND:20161026T200000Z LOCATION:Room 920\, Burnside Hall\, CA\, QC\, Montreal\, H3A 0B9\, 805 rue Sherbrooke Ouest SUMMARY:Rita Gitik\, University of Michigan URL:/mathstat/channels/event/rita-gitik-university-mic higan-263580 END:VEVENT END:VCALENDAR