Functional Analysis and Applications Seminar 

06/12/2013, 15:00 — 16:00 — Room P3.10, Mathematics Building
Eugene Shargorodsky, King's College London, UK

On the level sets of the resolvent norm of a linear operator

In 1976, J. Globevnik posed a question on whether or not the resolvent norm of a bounded linear operator on a Banach space can be constant on an open set. The question remained open until 2008. The talk is a survey of recent results and open questions related to Globevnik's question.