Sommaire du Fascicule no. 1
      
      
        
      
      
  
    
    
    About semiboundness of $\delta$-perturbations of the Laplacian supported by curves with angle points
    
    
  
  
  
        
          
        
      
 
      
        p. 3-17
        
        
        
        
      
    
  Sommaire du Fascicule no. 2
        p. 208-213
        
        
        
        
      
    
  
        p. 225-245
        
        
        
        
      
    
  
        p. 246-255
        
        
        
        
      
    
  Sommaire du Fascicule no. 3
        p. 429-437
        
        
        
        
      
    
  
        p. 478-490
        
        
        
        
      
    
  