© 1998 by London Mathematical Society
© The London Mathematical Society
Factoring Factor Maps
Department of Mathematics, University of Maryland College Park, Maryland 20742, USA. E-mail address: mmb{at}math.umd.edu
Received 9 February 1995. Revision received 10 January 1996.
A noninjective bounded-to-one factor map from an irreducible shift of finite type onto a sofic system can be factored as a composition of other such maps in only finitely many ways (up to isomorphism). This generalizes to factor maps from systems with canonical coordinates to finitely presented dynamical systems.