Elementary operators - still not elementary?

Title:  Elementary operators - still not elementary?

Speaker:  Martin Mathieu (QUB)

Date:  Tuesday, 5th April 2016

Time:  3pm

Location:  UCD, Ag 1.01

Abstract:

Many properties of elementary operators on Banach algebras have been studied extensively by a large number of authors over several decades but still they defy a full structural understanding maybe the reason being that they appear naturally in many guises in many situations. I shall report on recent work with Nadia Boudi (2015) and my latest PhD student Matthew Young (2015/16) in which we try to understand when elementary operators are spectrally bounded or spectrally isometric. As so often, definitive results are only achieved for elementary operators of small length.

Series: Analysis