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UID:d49a796caf44393ec48d421252b3c594
CATEGORIES:Topology/Geometry Seminar
CREATED:20240923T190709
SUMMARY:Compressing surface diffeomorphisms via bordered Floer homology
LOCATION:Hill 705
DESCRIPTION:Let F be a closed surface, and psi be a diffeomorphism of F. An interesting
  question with nice topological implications for detecting homotopy ribbon 
 fibered knots is whether psi extends over some handlebody with boundary F. 
 In 1985, Casson-Long gave an algorithm for answering this question. In this
  talk, first we will discuss how bordered Floer homology can be used to det
 ect whether psi extends over a specific handlebody. Then, we will outline h
 ow to adapt ideas of Casson-Long to give an algorithm using bordered Floer 
 homology to detect whether psi extends over any compression body. This is a
  joint work with Robert Lipshitz.\n
X-ALT-DESC;FMTTYPE=text/html:<p>Let F be a closed surface, and psi be a diffeomorphism of F. An interest
 ing question with nice topological implications for detecting homotopy ribb
 on fibered knots is whether psi extends over some handlebody with boundary 
 F. In 1985, Casson-Long gave an algorithm for answering this question. In t
 his talk, first we will discuss how bordered Floer homology can be used to 
 detect whether psi extends over a specific handlebody. Then, we will outlin
 e how to adapt ideas of Casson-Long to give an algorithm using bordered Flo
 er homology to detect whether psi extends over any compression body. This i
 s a joint work with Robert Lipshitz.</p>
CONTACT:Akram Alishahi, University of Goergia
DTSTAMP:20260829T124406
DTSTART;TZID=America/New_York:20240924T160000
DTEND;TZID=America/New_York:20240924T170000
SEQUENCE:0
TRANSP:OPAQUE
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