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Paper detail

Efficient Separability of Regular Languages by Subsequences and Suffixes

When can two regular word languages K and L be separated by a simple language? We investigate this question and consider separation by piecewise- and suffix-testable languages and variants thereof. We give characterizations of when two languages can be separated and present an overview of when these problems can be decided in polynomial time if K and L are given by nondeterministic automata.

preprint2013arXivOpen access
Wojciech CzerwińskiWim MartensTomáš Masopust
Formal Languages and Automata Theory
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Wojciech CzerwińskiWim MartensTomáš Masopust

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