BAAS, NILS A.; HELVIK, TORBJØRN - In: Advances in Complex Systems (ACS) 08 (2005) 02, pp. 169-192
We introduce a class of dynamical systems called Higher Order Cellular Automata (HOCA). These are based on ordinary CA, but have a hierarchical, or multi-level, structure and/or dynamics. We present a detailed formalism for HOCA and illustrate the concepts through four examples. Throughout the...