3 papers
physics.flu-dyn2020
-based sparsification of energy interactions in two-dimensional turbulent flows
Riccardo Rubini, Davide Lasagna, Andrea Da Ronch
In this paper, sparsity-promoting regression techniques are employed to automatically identify from data relevant triadic interactions between modal structures in large Galerkin-ba…
nlin.CD2019
Sensitivity of long periodic orbits of chaotic systems
Davide Lasagna
The properties of long, numerically-determined periodic orbits of two low-dimensional chaotic systems, the Lorenz equations and the Kuramoto-Sivashinsky system in a minimal-domain…
nlin.CD2018
Periodic Shadowing Sensitivity Analysis of Chaotic Systems
Davide Lasagna, Ati Sharma, Johan Meyers
The sensitivity of long-time averages of a hyperbolic chaotic system to parameter perturbations can be determined using the shadowing direction, the uniformly-bounded-in-time solut…