BEGIN:VCALENDAR VERSION:2.0 PRODID:-//132.216.98.100//NONSGML kigkonsult.se iCalcreator 2.20.4// BEGIN:VEVENT UID:20250804T191505EDT-247685mdB2@132.216.98.100 DTSTAMP:20250804T231505Z DESCRIPTION:Title:Coalescence of eigenvalues for symmetric and Hermitian ma trix functions\n\nAbstract:\n\nIn this talk we consider real symmetric and complex Hermitian matrices depending on parameters\, and are interested i n detecting coalescence of their eigenvalues and locating where it occurs. This is an old problem (it traces back to a celebrated paper of von Neuma nn and Wigner (1929)) that has received much attention in various fields s uch as Physics\, Chemistry and Engineering. We address both theoretical an d numerical aspects of the problem\, starting from the case of full 'gener al' matrices and then moving to that of more structured (e.g. banded) matr ices.\n\n \n DTSTART:20181112T210000Z DTEND:20181112T220000Z LOCATION:Room 1104\, Burnside Hall\, CA\, QC\, Montreal\, H3A 0B9\, 805 rue Sherbrooke Ouest SUMMARY:Alessandro Pugliese (University of Bari) URL:/mathstat/channels/event/alessandro-pugliese-unive rsity-bari-291334 END:VEVENT END:VCALENDAR