Two-way automata making choices only at the endmarkers
نویسندگان
چکیده
منابع مشابه
Two-Way Automata Making Choices Only at the Endmarkers
The question of the state-size cost for simulation of two-way nondeterministic automata (2nfas) by two-way deterministic automata (2dfas) was raised in 1978 and, despite many attempts, it is still open. Subsequently, the problem was attacked by restricting the power of 2dfas (e.g., using a restricted input head movement) to the degree for which it was already possible to derive some exponential...
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ژورنال
عنوان ژورنال: Information and Computation
سال: 2014
ISSN: 0890-5401
DOI: 10.1016/j.ic.2014.08.009