Exponential Frames and Riesz Sequences
BSU Mathematics Seminar
Abstract
In this talk, I will discuss various spanning properties of systems of exponential functions on general sets of finite Lebesgue measure. In particular, necessary density conditions for the frame property and the Riesz sequence property of exponential systems will be discussed, with special emphasis on their behaviour near and at the critical density.
Short Bio
Jordy Timo van Velthoven is a researcher in harmonic analysis at the University of Vienna. His work is centered on Fourier and harmonic analysis and the representation theory of Lie groups, with current interests including density conditions for coherent state subsystems and the localisation theory of frames and Riesz bases. He maintains an updated list of publications and research topics on his homepage.
Questions? Please contact the organizer: Vignon Oussa.