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math.CA2026
Dynamical Sampling in Graph Paley--Wiener Spaces
Iulia Martina Bulai, Carlos Cabrelli, Elena Cordero +2
We study dynamical sampling for graph signals using the spectral theory of the normalized graph Laplacian. Graph Paley-Wiener spaces GPW_w are defined as spectral subspaces associa…
math.CA2026
Beyond Single-Window Graph Fourier Analysis
Iulia Martina Bulai, Elena Cordero, Edoardo Pucci +1
We introduce a multi-windowed graph Fourier transform (MWGFT) for the joint vertex-frequency analysis of signals defined on graphs. Building on generalized translation and modulati…