2 papers
math.AG2019
Rationality Of the Locus Of Singularities Of the General Gough-Stewart Platform
Michel Coste, Seydou Moussa
We prove that the set of singular configurations of a general Gough Stewart platform has a rational parametrization. We introduce a reciprocal twist mapping which, for a general or…
math.AG2010
Geodesic diameter of sets defined by few quadratic equations and inequalities
Michel Coste, Seydou Moussa
We prove a bound for the geodesic diameter of a subset of the unit ball in described by a fixed number of quadratic equations and inequalities, which is polynomial i…