2 citations · 2 across the 3 of their papers we have counts for
4 papers
Bases of complex exponentials with restricted supports
Dae Gwan Lee, Goetz E. Pfander, David Walnut
The complex exponentials with integer frequencies form a basis for the space of square integrable functions on the unit interval. We analyze whether the basis property is maintaine…
Exponential bases for partitions of intervals
Goetz Pfander, Shauna Revay, David Walnut
For a partition of into intervals we prove the existence of a partition of into such that the complex exponential functions…
Sampling and reconstruction of operators
Götz E. Pfander, David F. Walnut
We study the recovery of operators with bandlimited Kohn-Nirenberg symbol from the action of such operators on a weighted impulse train, a procedure we refer to as operator samplin…
Cornerstones of Sampling of Operator Theory
David Walnut, Götz E. Pfander, Thomas Kailath
This paper reviews some results on the identifiability of classes of operators whose Kohn-Nirenberg symbols are band-limited (called band-limited operators), which we refer to as s…