126 citations · 348 across the 94 of their papers we have counts for
4 papers · 2 filters
Weak phase retrieval and phaseless reconstruction
Sara Botello-Andrade, Peter G. Casazza, Dorsa Ghoreishi +2
Phase retrieval and phaseless reconstruction for Hilbert space frames is a very active area of research. Recently, it was shown that these concepts are equivalent. In this paper, w…
Toward the Classification of Biangular Harmonic Frames
Peter G. Casazza, Amineh Farzannia, John I. Haas +1
Equiangular tight frames (ETFs) and biangular tight frames (BTFs) - sets of unit vectors with basis-like properties whose pairwise absolute inner products admit exactly one or two…
On the rigidity of geometric and spectral properties of Grassmannian frames
Peter G. Casazza, John I. Haas
We study the rigidity properties of Grassmannian frames: basis-like sets of unit vectors that correspond to optimal Grassmannian line packings. It is known that Grassmannian frames…
Phase retrieval in infinite-dimensional Hilbert spaces
Jameson Cahill, Peter G. Casazza, Ingrid Daubechies
The main result of this paper states that phase retrieval in infinite-dimensional Hilbert spaces is never uniformly stable, in sharp contrast to the finite dimensional setting in w…