Browsing by Subject "Turing machines"

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The complexity of small universal Turing machines : a survey

Neary, Turlough ; Woods, Damien (Elsevier, 2009-02-17)

We survey some work concerned with small universal Turing machines, cellular automata, tag systems, and other simple models of computation. For example it has been an open question for some time as to whether the smallest ...