126 citations · 348 across the 94 of their papers we have counts for
102 papers
Real matrices whose columns have equal modulus coordinates
Sara Botelho-Andrade, Peter G. Casazza, Desai Cheng +2
We study matrices whose columns are of the form \[\{(a_{1j},\ldots, a_{nj}): \quad a_{1j} = λ_j,\ a_{ij} = \pmλ_j\ , \ λ_j >0 ,\ j=1,2,\ldots,n\}.\] We explicitly cons…
A Survey of Fusion Frames in Hilbert Spaces
Lukas Köhldorfer, Peter Balazs, Pete Casazza +4
Fusion frames are a very active area of research today because of their myriad of applications in pure mathematics, applied mathematics, engineering, medicine, signal and image pro…
Classifying weak phase retrieval
P. G. Casazza, F. Akrami
We will give several surprising equivalences and consequences of weak phase retrieval. These results give a complete understanding of the difference between weak phase retrieval an…
Remarks on scalable frames
Peter G. Casazza, Laura De Carli, Tin T. Tran
This paper investigates scalable frame in . We define the reduced diagram matrix of a frame and use it to classify scalability of the frame under some conditions. We…
New characterizations of the unit vector basis of or
Peter G. Casazza, Stephen J. Dilworth, Denka Kutzarova +1
Motivated by Altshuler's famous characterization of the unit vector basis of or among symmetric bases, we obtain similar characterizations among democratic bases and…
Piecewise scalable frames
Peter G. Casazza, Laura De Carli, Tin T. Tran
In this paper we define "piecewise scalable frames". This new scaling process allows us to alter many frames to Parseval frames which is impossible by the previous standard scaling…