STRUCTURE OF GENERATING PARTITIONS FOR 2-DIMENSIONAL MAPS

We discuss the non-uniqueness of the generating partitions of two-dime nsional maps, and we give new explanations for ambiguities that are to be expected in the construction of generating partitions if a paramet er is varied. Both points are discussed with the help of the connectin g lines of homoclinic tangencies in the entire phase space, i.e. also outside the attractor, that can be calculated very easily with a new a lgorithm introduced recently.