15 citations · 51 across the 28 of their papers we have counts for
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math.FA2016
Approximation by partial isometries and symmetric approximation of finite frames
Jorge Antezana, Eduardo Chiumiento
We solve the problem of best approximation by partial isometries of given rank to an arbitrary rectangular matrix, when the distance is measured in any unitarily invariant norm. In…
math.CA2016
Existence of quasicrystals and universal stable sampling and interpolation in LCA groups
E. Agora, J. Antezana, C. Cabrelli +1
We characterize all the locally compact abelian (LCA) groups that contain quasicrystals (a class of model sets). Moreover, we describe all possible quasicrystals in the group const…