16 Jan
2018
16 Jan
'18
10:40 p.m.
https://en.wikipedia.org/wiki/Laplace–Runge–Lenz_vector
On Jan 16, 2018, at 2:36 PM, Cris Moore <moore@santafe.edu> wrote:
if I recall correctly, for 1/r^2 gravity there is a conserved quantity other than the energy and the angular momentum — this is why this system is “integrable". this additional quantity puts a bunch of elliptical orbits into an equivalence class with the same period. but I don’t remember how it works… can someone tell us?
- Cris