Blanchard, Devaney & Keen (2004), p. 38: "The shift map is without doubt the fundamental object in symbolic dynamics." Blanchard, Paul; Devaney, Robert L.; Keen, Linda (2004), "Complex dynamics and symbolic dynamics", in Williams, Susan G. (ed.), Symbolic Dynamics and its Applications, Proceedings of Symposia in Applied Mathematics, vol. 60, Providence, RI: American Mathematical Society, pp. 37–60, doi:10.1090/psapm/060/2078845, MR2078845.
Culik cites a 1979 automata theory textbook for this result, but see Béal et al. (2003) for more recent developments on efficiently testing whether a transducer defines a function. Béal, Marie-Pierre; Carton, Olivier; Prieur, Christophe; Sakarovitch, Jacques (2003), "Squaring transducers: an efficient procedure for deciding functionality and sequentiality", Theoretical Computer Science, 292 (1): 45–63, doi:10.1016/S0304-3975(01)00214-6, MR1964625.
Blanchard, Devaney & Keen (2004), p. 38: "The shift map is without doubt the fundamental object in symbolic dynamics." Blanchard, Paul; Devaney, Robert L.; Keen, Linda (2004), "Complex dynamics and symbolic dynamics", in Williams, Susan G. (ed.), Symbolic Dynamics and its Applications, Proceedings of Symposia in Applied Mathematics, vol. 60, Providence, RI: American Mathematical Society, pp. 37–60, doi:10.1090/psapm/060/2078845, MR2078845.
Blanchard, Devaney & Keen (2004), p. 38: "The shift map is without doubt the fundamental object in symbolic dynamics." Blanchard, Paul; Devaney, Robert L.; Keen, Linda (2004), "Complex dynamics and symbolic dynamics", in Williams, Susan G. (ed.), Symbolic Dynamics and its Applications, Proceedings of Symposia in Applied Mathematics, vol. 60, Providence, RI: American Mathematical Society, pp. 37–60, doi:10.1090/psapm/060/2078845, MR2078845.
Culik cites a 1979 automata theory textbook for this result, but see Béal et al. (2003) for more recent developments on efficiently testing whether a transducer defines a function. Béal, Marie-Pierre; Carton, Olivier; Prieur, Christophe; Sakarovitch, Jacques (2003), "Squaring transducers: an efficient procedure for deciding functionality and sequentiality", Theoretical Computer Science, 292 (1): 45–63, doi:10.1016/S0304-3975(01)00214-6, MR1964625.