BEGIN:VCALENDAR
VERSION:2.0
PRODID:researchseminars.org
CALSCALE:GREGORIAN
X-WR-CALNAME:researchseminars.org
BEGIN:VEVENT
SUMMARY:Francesco Lin (Columbia Univ.)
DTSTART:20220121T160000Z
DTEND:20220121T171500Z
DTSTAMP:20260423T040150Z
UID:CIRGET/56
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/CIRGET/56/">
 Closed geodesics and Frøyshov invariants of hyperbolic three-manifolds</a
 >\nby Francesco Lin (Columbia Univ.) as part of CRM - Séminaire du CIRGET
  / Géométrie et Topologie\n\n\nAbstract\nFrøyshov invariants are subtle
  numerical topological  invariants of rational homology three-spheres deri
 ved from gradings in  monopole Floer homology. In this talk I will look at
  their relation  with invariants arising from hyperbolic geometry (such as
  volumes and  lengths of closed geodesics)\, using an odd version of the S
 elberg  trace formula and ideas from analytic number theory. In particular
 \,  for the class of minimal L-spaces\, I will describe an effective  proc
 edure to compute them taking as input explicit geometric data\, and  show 
 for example how this can be used to determine all the Frøyshov  invariant
 s for the Seifert-Weber dodecahedral space. This is joint  work with M. Li
 pnowski (McGill).\n
LOCATION:https://researchseminars.org/talk/CIRGET/56/
END:VEVENT
END:VCALENDAR