Vera Vértesi 
            
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 .