On the Power of Real-Time Two-Way Multihead Finite Automata With Jumps

Abstract We investigate the relative power of jumps, nondeterminism, and number of heads for real-time automata. Results include showing that jumps and power that cannot be compensated for by nondeterminism and more heads. We also show that k+1 heads are more powerful than k heads, even if the finite automaton is allowed head to head jumps.