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Notes on looping deterministic two-way pushdown automata

✍ Scribed by M. Ladermann; H. Petersen


Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
444 KB
Volume
49
Category
Article
ISSN
0020-0190

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For each positive integer n, let -~eN(n ) be the class of sets accepted by a family of automata of type N, each with a read-only input with endmarkers and n two-way input heads. The following result, which is applicable to most types of two-way multihead devices, is proved: If for each positive inte