- Series
- Analysis Seminar
- Time
- Wednesday, October 14, 2009 - 2:00pm for 1 hour (actually 50 minutes)
- Location
- Skiles 269
- Speaker
- Marcus Carlsson – Purdue University
- Organizer
- Brett Wick
Given an "infinite symmetric matrix" W we give a simple condition, related
to the shift operator being expansive on a certain sequence space, under
which W is positive. We apply this result to AAK-type theorems for
generalized Hankel operators, providing new insights related to previous
work by S. Treil and A. Volberg. We also discuss applications and open
problems.