2 papers
math-ph2021
Double groupoids in the theory of material uniformity
Marcelo Epstein
The use of double groupoids and their associated double Lie algebroids and characteristic distributions is proposed for the description and analysis of continuous media that carry…
physics.class-ph2014
Constrained ballistics and geometrical optics
Marcelo Epstein
The problem of constant-speed ballistics is studied under the umbrella of non-linear non-holonomic constrained systems. The Newtonian approach is shown to be equivalent to the use…