Thursday November 29, room P 423
13:30-14:15 Sanne ter Horst: Relaxed commutant lifting: an equivalent problem and existence of a unique solution.
14:15-15:00 Art Frazho: Relaxed commutant lifting and limit theorems: Numerical examples
15:00-15:30 coffee break and room change.
Thursday, November 29, room R 223
15:30-16:15 Michael Dritschel: Realizations and Applications
Suppose $f$ is an analytic function mapping the disk to itself. Then
the realization theorem states that there is a unitary operator $U =
\begin{pmatrix} A & B \\ C & D \end{pmatrix}$ such that $f =
D+Cz(I-Az)^{-1}B$. This idea is subject to vast generalisation with
broad application. We discuss some of these here, including
interpolation problems, generalised Schwarz-Pick inequalities, and
rational dilation problems.
16:15-17:00 Henk de Snoo: Boundary relations, unitary colligations,
and functional models
Joint work with Jussi Behrndt and Seppo Hassi
Friday, November 30, room R 239
10:30-11:15 Daniel Alpay: Boundary interpolation, reproducing kernel Pontryagin spaces and applications to rigidity problems.
11:15-12:00 Harm Bart: Vector-valued logarithmic residues and non-commutative Gelfand theory
12:00-13:15 lunch and room change
13:15-14:00 Rien Kaashoek: The continous analogue of the Sylvester matrix and an application
14:00-14:45 Andre Ran: Symmetric factorization, Riccati equations and Bezoutians