Parallel time O(log n) recognition of unambiguous context-free languages (Q1096400)
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scientific article; zbMATH DE number 4031020
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Parallel time O(log n) recognition of unambiguous context-free languages |
scientific article; zbMATH DE number 4031020 |
Statements
Parallel time O(log n) recognition of unambiguous context-free languages (English)
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1987
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We prove that every unambiguous context-free language can be recognized in O(log n) time on a parallel random access machine without write conflicts (P-RAM) using a polynomial number of processors. This strengthens the result of \textit{J. Reif} [Proc. 23rd IEEE Symp. Found. Comput., 114-118 (1982)], who proved that every deterministic context- free language can be recognized on a P-RAM in O(log n) time.
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unambiguous context-free language
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parallel random access machine
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polynomial number of processors
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