3 papers
math.OC2020
The Manifold Of Variations: hazard assessment for short-term impactors
A. Del Vigna
When an asteroid has a few observations over a short time span the information contained in the observational arc could be so little that a full orbit determination may be not poss…
math.DS2019
A slow triangle map with a segment of indifferent fixed points and a complete tree of rational pairs
Claudio Bonanno, Alessio Del Vigna, Sara Munday
We study the two-dimensional continued fraction algorithm introduced in \cite{garr} and the associated \emph{triangle map} , defined on a triangle . We in…
astro-ph.EP2018
Completeness of Impact Monitoring
Alessio Del Vigna, Andrea Milani, Federica Spoto +2
The completeness limit is a key quantity to measure the reliability of an impact monitoring system. It is the impact probability threshold above which every virtual impactor has to…