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SUMMARY:Qualitative Counting Closed Geodesics - Bastien Karlhofer (Aberdee
 n)
DTSTART:20181123T150000Z
DTEND:20181123T160000Z
UID:TALK111091@talks.cam.ac.uk
CONTACT:Ben Morley
DESCRIPTION:Classically\, counting closed geodesics is done in form of est
 imates of\nthe number of geodesics of a given length. In this talk we want
  to count\ndifferently\, namely by measuring how big the subgroup of the f
 undamental\ngroup generated by closed geodesics is\, and how fast it is ge
 nerated.\nWe will see that this word norm defined by closed geodesics on i
 ts\ngenerated subgroup has infinite diameter on certain negatively curved\
 nRiemannian manifolds using methods arising from geometric group theory.
LOCATION:MR13
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