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X-WR-CALNAME:University of Nebraska-Lincoln
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BEGIN:VEVENT
DTSTART:20191115T220000Z
UID:142655@events.unl.edu
DTSTAMP:20190819T223708Z
ORGANIZER;CN=Adam Larios:MAILTO:alarios@unl.edu
SUMMARY:John Jasper\, South Dakota State University
STATUS:CONFIRMED
DESCRIPTION:In 2001 Kadison proved a remarkable theorem which generalized t
he Pythagorean theorem in a new way. Together with the converse\, called t
he Carpenterâ€™s theorem\, this gives a complete characterization of the d
iagonals of orthogonal projection matrices\, that is\, the sequences of nu
mbers that can arise as the main diagonal of an orthogonal projection matr
ix. Amazingly\, Kadisonâ€™s work also characterized the diagonals of proje
ctions on infinite dimensional Hilbert spaces. His work has sparked many r
esearchers to study diagonals of operators in a number of diverse settings
. In this talk we will see some of the recent work on diagonals of operato
rs\, as well as some surprising open problems.
LOCATION:Avery Hall Room 115
URL://events.unl.edu/2019/11/15/142655/
DTEND:20191115T225000Z
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