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19952026
most citedSard Property for the endpoint map on some Carnot groups

67 citations · 524 across the 58 of their papers we have counts for

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25 papers · 1 filter

math.DS2026

Approach to total collision in the spatial 4-body problem

Richard Montgomery, Guowei Yu

Every solution for the classical four body problem in space which ends in total collision has a limiting shape. We prove that when that shape is planar the entire solution lies in…

math.DS2026

Halfway between Heaven and Hell

Richard Montgomery

We pose several questions for the classical N-body problem inspired by connections between the virial equation and the Jacobi-Maupertuis formulationof mechanics. We answer some.

math.DS2023

Compactification of the energy surfaces for n bodies

Andreas Knauf, Richard Montgomery

For n bodies moving in Euclidean d-space under the influence of a homogeneous pair interaction we compactify every center-of-mass energy surface, obtaining a 2d(n -1)-1 - dimension…

math.DS2023

No Infinite Spin for Planar Total Collision

Richard Moeckel, Richard Montgomery

The infinite spin problem concerns the rotational behavior of total collision orbits in the -body problem. It has long been known that when a solution tends to total collision t…

math.DS2022★ 1 cited

Dropping Bodies

Richard Montgomery

The subject is brake orbits for the 3-body problem: orbits where all velocities are zero at some instant. We extract a paradox and a mystery out of a recent database of 30 non-coll…

math.DS2021

Classical -body scattering with long-range potentials

Jacques Féjoz, Andreas Knauf, Richard Montgomery

We consider the scattering of classical particles interacting via pair potentials, under the assumption that each pair potential is "long-range", i.e. being of order ${\cal O}(…