On the time complexity of 2-tag systems and small universal Turing machines
On the time complexity of 2-tag systems and small universal Turing machines
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关于2标签系统和小型通用图灵机的时间复杂度
DOI:
10.1109/focs.2006.58
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发表时间:
2006
期刊:
影响因子:
--
通讯作者:
Turlough Neary
中科院分区:
文献类型:
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作者:
D. Woods;Turlough Neary
We show that 2-tag systems efficiently simulate Turing machines. As a corollary we find that the small universal Turing machines of Rogozhin, Minsky and others simulate Turing machines in polynomial time. This is an exponential improvement on the previously known simulation time overhead and improves a forty year old result in the area of small universal Turing machines