## Frames by Operator Orbits

Series
Analysis Seminar
Time
Tuesday, November 24, 2020 - 2:00pm for 1 hour (actually 50 minutes)
Location
Online
Speaker
Carlos Cabrelli – University of Buenos Aires – cabrelli@dm.uba.arhttp://mate.dm.uba.ar/~cabrelli/
Organizer

I will review some results on the question of when the orbits $\{ T^j g : j \in J, g \in G \}$ of a bounded operator $T$ acting on a Hilbert space $\mathcal{H}$ with $G \subset \mathcal{H}$ form a frame of $\mathcal{H}$. I will also comment on recent advances. This is motivated by the Dynamical Sampling problem that consists of recovering a time-evolving signal from its space-time samples.