Recursively enumerable sets and degrees
Recursively enumerable sets and degrees
Classifying circular cellular automata
Physica D
Cellular automata, &ohgr;&ohgr;-regular sets, and sofic systems
Discrete Applied Mathematics - Formal language theory
On the computational complexity of finite cellular automata
Journal of Computer and System Sciences
On the classifiability of cellular automata
Theoretical Computer Science
A new kind of science
Cellular automata and intermediate degrees
Theoretical Computer Science
The constructibility of a configuration in a cellular automaton
Journal of Computer and System Sciences
Almost Periodic Configurations on Linear Cellular Automata
Fundamenta Informaticae - Cellular Automata
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We exhibit one-dimensional cellular automata whose reachability and confluence problems have arbitrary r.e. degree of unsolvability.