Classifying Legendrian Positive Torus Knots

Series
Geometry Topology Student Seminar
Time
Wednesday, November 1, 2023 - 2:00pm for 1 hour (actually 50 minutes)
Location
Skiles 006
Speaker
Tom Rodewald – Georgia Tech – tomrodewald@gatech.edu
Organizer
Sierra Knavel

Legendrian knots are an important kind of knot in contact topology. One of their invariants,  the Thurston-Bennequin number, has an upper bound for any given knot type, called max-tb. Using convex surface theory, we will compute the max-tb of positive torus knots and show that two max-tb positive torus knots are Legendrian isotopic. If time permits, we will show that any non max-tb positive torus knot is obtained from the unique max-tb positive torus knot by a sequence of stabilizations.