Rohlin Distance and the Evolution of Influenza A Virus: Weak Attractors and Precursors
Two partitions and (derived from sequences as given in the text) and their maximal common factor . Thick vertical lines individuate the atomic segments. Below, the reduced partitions and . Colors in and remind the source configurations. There are no colors in , and because these partitions do not originate from sequences of symbols but are directly defined in the partition space.