Periodic functions on a free semigroup
    
    
  
  
  
      
      
      
        
Sbornik. Mathematics, Tome 197 (2006) no. 10, pp. 1509-1528
    
  
  
  
  
  
    
      
      
        
      
      
      
    Voir la notice de l'article provenant de la source Math-Net.Ru
            
              			Let $X^*$ be the set of words over a finite alphabet $X$.
The concept of periodic function $u\colon X^*\to M$ is considered.
Such functions arise as the state transition functions and the output functions of automata.
A method for the evaluation of the period and other characteristics of a periodic function  with the use of the vector-period group and the fundamental group of the graph of the function
is put forward.
Bibliography: 5 titles.
			
            
            
            
          
        
      @article{SM_2006_197_10_a6,
     author = {V. L. Kurakin},
     title = {Periodic functions on a free semigroup},
     journal = {Sbornik. Mathematics},
     pages = {1509--1528},
     publisher = {mathdoc},
     volume = {197},
     number = {10},
     year = {2006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2006_197_10_a6/}
}
                      
                      
                    V. L. Kurakin. Periodic functions on a free semigroup. Sbornik. Mathematics, Tome 197 (2006) no. 10, pp. 1509-1528. http://geodesic.mathdoc.fr/item/SM_2006_197_10_a6/
