Turlough Neary, Damien Woods
Abstract
We present a small time-efficient universal Turing machine with 5 states and 6 symbols. This Turing machine simulates our new variant of tag system. It is the smallest known universal Turing machine that simulates Turing machine computations in polynomial time.
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We present a small time-efficient universal Turing machine with 5 states and 6 symbols. This Turing machine simulates our new variant of tag system. It is the smallest known universal Turing machine that simulates Turing machine computations in polynomial time.
Key concepts: Universal Turing machine, Turing machine examples, Turing machine, Super-recursive algorithm, NSPACE, Description number, Non-deterministic Turing machine, Probabilistic Turing machine