49 citations · 240 across the 26 of their papers we have counts for
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math.DS2013★ 10 cited
Linking and closed orbits
Stefan Suhr, Kai Zehmisch
We show that the Lagrangian of classical mechanics on a Riemannian manifold of bounded geometry carries a periodic solution of motion with rescribed energy, provided the potential…
math.DG2013★ 4 cited
A Counterexample to Guillemin's Zollfrei Conjecture
Stefan Suhr
We construct Zollfrei Lorentzian metrics on every nontrivial orientable circle bundle over a orientable closed surface. Further we prove a weaker version of Guillemin's conjecture…