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math.OC2018
On the existence and approximation of a dissipating feedback
Nicola Guglielmi, Valeria Simoncini
Given a matrix and a tall rectangular matrix , , we consider the problem of making the pair dissipative, that is the dete…
astro-ph.IM2018
Approximate nonnegative matrix factorization algorithm for the analysis of angular differential imaging data
Carmelo Arcidiacono, Valeria Simoncini
The angular differential imaging (ADI) is used to improve contrast in high resolution astronomical imaging. An example is the direct imaging of exoplanet in camera fed by Extreme A…