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math.FA2008
Equiangular tight frames from complex Seidel matrices containing cube roots of unity
Bernhard G. Bodmann, Vern I. Paulsen, Mark Tomforde
We derive easily verifiable conditions which characterize when complex Seidel matrices containing cube roots of unity have exactly two eigenvalues. The existence of such matrices i…
math.FA2008
Function Theory in Real Hardy Spaces
Mrinal Raghupathi, Dinesh Singh
We show that many classical results in Hardy space theory have exact analogues when the Fourier coefficients are allowed only to be real.
math.FA2004
Frames, Graphs and Erasures
Bernhard G. Bodmann, Vern I. Paulsen
Two-uniform frames and their use for the coding of vectors are the main subject of this paper. These frames are known to be optimal for handling up to two erasures, in the sense th…