Consortium of Swiss Academic Libraries

Shortest closed billiard orbits on convex tables

Alkoumi, Naeem ; Schlenk, Felix

In: Manuscripta Mathematica, 2015, vol. 147, no. 3-4, p. 365-380

Consortium of Swiss Academic Libraries

Filtered Hopf algebras and counting geodesic chords

Frauenfelder, Urs ; Schlenk, Felix

In: Mathematische Annalen, 2014, vol. 360, no. 3-4, p. 995-1020