- Series
- Geometry Topology Seminar
- Time
- Monday, March 25, 2013 - 2:00pm for 1 hour (actually 50 minutes)
- Location
- Skiles 006
- Speaker
- I. Dynnikov – Moscow State University
- Organizer
- Thang Le
A few years ago I proved that any rectangular diagram of the
unknot admits monotonic simplification by elementary moves. More recently
M.Prasolov and I addressed the question: when a rectangular diagram of a
link admits at least one step of simplification? It turned out that an
answer can be given naturally in terms of Legendrian links. On this way,
we resolved positively a conjecture by V.Jones on the invariance of the
algebraic crossing number of a minimal braid, and a few similar questions.