150 citations · 1k across the 31 of their papers we have counts for
4 papers · 1 filter
Self-stabilised fractality of sea-coasts through damped erosion
B. Sapoval, A. Baldassarri, A. Gabrielli
Erosion of rocky coasts spontaneously creates irregular seashores. But the geometrical irregularity, in turn, damps the sea-waves, decreasing the average wave amplitude. There may…
Velocity fluctuations in cooling granular gases
Andrea Baldassarri, Umberto Marini Bettolo Marconi, Andrea Puglisi
We study the formation and the dynamics of correlations in the velocity field for 1D and 2D cooling granular gases with the assumption of negligible density fluctuations (``Homogen…
Self-Organized Percolation Power Laws with and without Fractal Geometry in the Etching of Random Solids
Agnes Desolneux, Bernard Sapoval, Andrea Baldassarri
Classically, percolation critical exponents are linked to the power laws that characterize percolation cluster fractal properties. It is found here that the gradient percolation po…
The average shape of a fluctuation: universality in excursions of stochastic processes
Andrea Baldassarri, Francesca Colaiori, Claudio Castellano
We study the average shape of a fluctuation of a time series x(t), that is the average value <x(t)-x(0)>_T before x(t) first returns, at time T, to its initial value x(0). For larg…