2 citations · 4 across the 4 of their papers we have counts for
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Orthogonal Frames of Translates
Eric Weber
Two Bessel sequences are orthogonal if the composition of the synthesis operator of one sequence with the analysis operator of the other sequence is the 0 operator. We characterize…
The Geometry of Sampling on Unions of Lattices
Eric Weber
In this short note we show two results concerning sampling translation invariant subspaces of $\ltwod$ on unions of lattices. The first result shows that the sampling transform on…
Geometric Aspects of Frame Representations of Abelian Groups
Akram Aldroubi, David Larson, Wai-Shing Tang +1
We consider frames arising from the action of a unitary representation of a discrete countable abelian group. We show that the range of the analysis operator can be determined by c…
Ellipsoidal tight frames and projection decompositions of operators
Ken Dykema, Dan Freeman, Keri Kornelson +3
We prove the existence of tight frames whose elements lie on an arbitrary ellipsoidal surface within a real or complex separable Hilbert space H, and we analyze the set of attainab…