Mathematics – Group Theory
Scientific paper
2006-06-17
Mathematics
Group Theory
8 pages
Scientific paper
Counter automata are more powerful versions of finite-state automata where
addition and subtraction operations are permitted on a set of n integer
registers, called counters. We show that the word problem of $\Z^n$ is accepted
by a nondeterministic $m$-counter automaton if and only if $m \geq n$.
Cleary Sean
Elder Murray
Ostheimer Gretchen
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