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  JOSEPH FELS RITT LECTURES
         
         
         
         
         
  Tomasz Mrowka
  Massachusetts Institute of 
  Technology
 
Knots, Triangles and Monopoles
          
"Floer's Instanton 
  Homology and Representations of Three Manifold Fundamental Groups"
  
  Thursday, April 15
  313 
  Fayerweather Building
  
  *     *     *     
  *     *
  
  "Witten's Conjecture and Property P"
  
         
  
         Friday, April 16
  
         
         
         
         
  520 Mathematics Building
                     
         Both Lectures will be at 4:30 p.m.
                       
         Tea will be served at 3:45 p.m. both days
                 
         
         508 Mathematics 
          
         Building
         
         
                            
         
         Directions to Columbia University