In this paper we will provide a detailed proof of the solvability of the halting and reachability problem for binary 2-tag systems. We will furthermore prove that an important sub...
Abstract. In this paper we will give an outline of the proof of the solvability of the halting and reachability problem for 2-symbolic tag systems with a deletion number v = 2. Thi...
We introduce some new models of infinite-state transition systems. The basic model, called a (reversal-bounded) counter machine (CM), is a nondeterministic finite automaton augment...