77 citations · 141 across the 18 of their papers we have counts for
19 papers
Localization in the Discrete Non-Linear Schrödinger Equation and geometric properties of the microcanonical surface
Claudio Arezzo, Federico Balducci, Riccardo Piergallini +2
It is well known that, if the initial conditions have sufficiently high energy density, the dynamics of the classical Discrete Non-Linear Schrödinger Equation (DNLSE) on a lattice…
The simplest erasing substitution
Alessandro Della Corte, Stefano Isola, Riccardo Piergallini
In this work, we begin the study of a new class of dynamical systems determined by interval maps generated by the symbolic action of erasing substitution rules. We do this by discu…
Exploring Event Horizons and Hawking Radiation through Deformed Graphene Membranes
Tommaso Morresi, Daniele Binosi, Stefano Simonucci +4
Analogue gravitational systems are becoming an increasing popular way of studying the behaviour of quantum systems in curved spacetime. Setups based on ultracold quantum gases in p…
Special moves for open book decompositions of 3-manifolds
Riccardo Piergallini, Daniele Zuddas
We provide a complete set of two moves that suffice to relate any two open book decompositions of a given 3-manifold. One of the moves is the usual plumbing with a positive or nega…
Fingerprint Orientation Refinement through Iterative Smoothing
Pierluigi Maponi, Riccardo Piergallini, Filippo Santarelli
We propose a new gradient-based method for the extraction of the orientation field associated to a fingerprint, and a regularisation procedure to improve the orientation field comp…
Branched coverings of and other basic 4-manifolds
Riccardo Piergallini, Daniele Zuddas
We give necessary and sufficient conditions for a 4-manifold to be a branched covering of , , and , which are…