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SUMMARY:Marco Mazzucchelli (ENS de Lyon)
DTSTART:20200603T111000Z
DTEND:20200603T123000Z
DTSTAMP:20260404T131149Z
UID:GDS/6
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/GDS/6
 /">Closed geodesics on reversible Finsler 2-spheres</a>\nby Marco Mazzucch
 elli (ENS de Lyon) as part of Geometry and Dynamics seminar\n\n\nAbstract\
 nIn this talk\, I will show that two celebrated theorems on closed \ngeode
 sics of Riemannian 2-spheres still hold for the larger class \nof reversib
 le Finsler 2-spheres: Lusternik-Schnirelmann's theorem \nasserting the exi
 stence of three simple closed geodesics\, and \nBangert-Franks-Hingston's 
 theorem asserting the existence of \ninfinitely many closed geodesics. I w
 ill sketch the proofs of \nthese statements\, employing in particular the 
 Finsler generalization \nof Grayson's curve shortening flow developed by A
 ngenent-Oaks. \nThis is joint work with Guido De Philippis\, Michele Marin
 i\, and \nStefan Suhr.\n
LOCATION:https://stable.researchseminars.org/talk/GDS/6/
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