21 citations · 52 across the 17 of their papers we have counts for
3 papers · 1 filter
The Zak transform and the structure of spaces invariant by the action of an LCA group
Davide Barbieri, Eugenio Hernández, Victoria Paternostro
We study closed subspaces of , where is a -finite measure space, that are invariant under the unitary representation associated to a measurable action of a disc…
Cortical spatio-temporal dimensionality reduction for visual grouping
Giacomo Cocci, Davide Barbieri, Giovanna Citti +1
The visual systems of many mammals, including humans, is able to integrate the geometric information of visual stimuli and to perform cognitive tasks already at the first stages of…
Riesz and frame systems generated by unitary actions of discrete groups
Davide Barbieri, Eugenio Hernández, Javier Parcet
We characterize orthonormal bases, Riesz bases and frames which arise from the action of a countable discrete group on a single element of a given Hilbert space $\mathcal{H…