Contact structures and knots
Legendrian knots are knots in R^3, that can be described by their projection
on the plane; The height of each point is minus the slope of the tangent line
in the plane.
More generally Legendrian knots live in contact structures on arbitrary 3-manifolds.
The aim of this talk is to define and give a brief overview of contact structures, and their connection with Legendrian knots.
For those who would like to hear more, there will be a follow-up to this talk (in Hungarian) on Friday, April 24th .