Title : 
On the complexity of unique solutions
         
        
            Author : 
Papadimitriou, Christos H. ; Papadimitriou, Christos H. ; Papadimitriou, Christos H. ; Papadimitriou, Christos H.
         
        
        
        
        
        
            Abstract : 
We show that the problem of deciding whether an instance of the traveling salesman problem has a uniquely optimal solution is complete for Δ2P.
         
        
            Keywords : 
Calculus; Costs; Encoding; Polynomials; Soil; Tiles; Traveling salesman problems; Turing machines;
         
        
        
        
            Conference_Titel : 
Foundations of Computer Science, 1982. SFCS '08. 23rd Annual Symposium on
         
        
            Conference_Location : 
Chicago, IL, USA
         
        
        
        
            DOI : 
10.1109/SFCS.1982.28