4 papers
Chirp-Induced Non-Separable Gabor Windows on
Lorenzo De Leonardis, Alessandro Mazzoccoli, Pierluigi Vellucci
We construct an explicit class of non-separable Gabor windows on by applying chirp deformations to tensor-product dual pairs on separable lattices. Starting from one-di…
Symmetry, Scaling, and Optimal Time-Frequency Concentration: Minimising the Heisenberg Uncertainty in Piecewise-Polynomial and Wavelet Dictionaries
Lorenzo de Leonardis, Alessandro Mazzoccoli, Pierluigi Vellucci
In this work, we introduce a hierarchy of function classes defined on a fixed compact interval, along with tailored uncertainty operators. We establish key properties of the associ…
Wavelet analysis and energy-based measures for oil-food price relationship as a footprint of financialisation effect
Loretta Mastroeni, Alessandro Mazzoccoli, Greta Quaresima +1
In this paper we exploit the wavelet analysis approach to investigate oil-food price correlation and its determinants in the domains of time and frequency. Wavelet analysis is able…
Forced quasi-periodic oscillations in strongly dissipative systems of any finite dimension
Guido Gentile, Alessandro Mazzoccoli, Faenia Vaia
We consider a class of singular ordinary differential equations describing analytic systems of arbitrary finite dimension, subject to a quasi-periodic forcing term and in the prese…