Functional Analysis and Applications Seminar 

02/07/2010, 15:15 — 16:15 — Room P3.10, Mathematics Building
Ilya Spitkovsky, College of William and Mary, Williamsburg, Virginia, USA

On some new results in the numerical range theory

We will recall the notion of the numerical range (also known as the field of values), outline its known beautiful properties, and discuss some generalizations and results obtained recently. In particular, the ratio field of values will be treated in detail.