| 
  
  Identities
  
   
   Recurrence identities
   
    
    Consecutive neighbors
    With respect to n With respect to lambda 
    
    Distant neighbors
    With respect to n With respect to lambda 
   
   Functional identities
   
    
    Relations between contiguous functions
    Recurrence relations Normalized recurrence relation Additional relations between contiguous functions Relations of special kind |