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Complexity in Prefix-Free Regular Languages (1008.1662v1)
Published 10 Aug 2010 in cs.FL
Abstract: We examine deterministic and nondeterministic state complexities of regular operations on prefix-free languages. We strengthen several results by providing witness languages over smaller alphabets, usually as small as possible. We next provide the tight bounds on state complexity of symmetric difference, and deterministic and nondeterministic state complexity of difference and cyclic shift of prefix-free languages.
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