Representation theory, dynamical systems, combinatorial methods. Part XXVIII
      
      
        
      
      
  
    
    
    Combinatorial encodings of infinite symmetric groups and descriptions of semigroups of double cosets
    
    
  
  
  
        
          
        
      
 
      
        p. 65-92
        
        
        
        
      
    
  
        p. 103-111
        
        
        
        
      
    
  