Tome 27 (1987) no. 5
Sommaire
      
      
        
      
      
  
    
    
    The method of quasi-solutions for the problem of determining the eigenfunctions of a linear operator
    
    
  
  
  
        
          
        
      
 
      
        p. 643-650
        
        
        
        
      
    
  
        p. 651-660
        
        
        
        
      
    
  
        p. 661-675
        
        
        
        
      
    
  
        p. 771-776
        
        
        
        
      
    
  