2 papers
math.CA2021
Symmetric Solutions to Nonlinear Vectorial 2nd Order ODE's
Ali Abdulhussein, Harry Gingold
It is proven that second-order vectorial nonlinear differential systems y''=f(y) , possess a continuum of symmetric solutions. They are shown to possess a continuum of even solutio…
math-ph2021
Celestial Mechanics Solutions where the Future is a Perfect Reflection of the Past
Ali Abdulhussein, Harry Gingold
Newton's equations of celestial mechanics are shown to possess a continuum of solutions in which the future trajectories of the N bodies are a perfect reflection of their past. The…