Central configurations, Morse and fixed point indices
arXiv:1612.05937
Abstract
We compute the fixed point index of non-degenerate central configurations for the -body problem in the euclidean space of dimension , relating it to the Morse index of the gravitational potential function induced on the manifold of all maximal -orbits. In order to do so, we analyze the geometry of maximal orbit type manifolds, and compute Morse indices with respect to the mass-metric bilinear form on configuration spaces.
11 pages