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math.DG2011★ 6 cited
Asymptotically harmonic manifolds without focal points
Andrew M. Zimmer
In this note we show that a compact asymptotically harmonic manifold without focal points is either flat or a rank one locally symmetric space.
math.SG2011★ 24 cited
A symplectic proof of a theorem of Franks
Brian Collier, Ely Kerman, Benjamin M. Reiniger +2
A celebrated theorem in two-dimensional dynamics due to John Franks asserts that every area preserving homeomorphism of the sphere has either two or infinitely many periodic points…