Loci of 3-periodics in an Elliptic Billiard: Why so many ellipses?

Ronaldo Garcia, Jair Koiller, Dan Reznik. Loci of 3-periodics in an Elliptic Billiard: Why so many ellipses?. Journal of Symbolic Computation, 114:336-358, 2023. [doi]

Abstract

Abstract is missing.