Titlebook: Descriptional Complexity of Formal Systems; 18th IFIP WG 1.2 Int Cezar Câmpeanu,Florin Manea,Jeffrey Shallit Conference proceedings 2016 IF

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State Complexity of Prefix Distance of Subregular Languages,wer bounds for the size of the minimal deterministic finite automaton (DFA) needed for the radius . prefix distance neighbourhood of an . state DFA that recognizes, respectively, a finite, a prefix-closed and a prefix-free language. For prefix-closed languages the lower bound automata are defined ov

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Conference proceedings 2016harest, Romania, in July 2016. The 13 full papers presentedtogether with 4 invited talks were carefully reviewed and selected from21 submissions.Descriptional Complexity is a field in Computer Science that deals with the size of all kind of objects that occur in computational models, such as Turing M

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Contextual Array Grammars with Matrix and Regular Control,contextual array grammars with regular control languages coincides with the family of regular 1-dimensional array languages, whereas for alphabets with more than one letter, we obtain the array images of the linear languages.

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Minimal and Reduced Reversible Automata, proved that if the minimum deterministic automaton accepting a reversible language contains a loop in the “irreversible part” then it is always possible to construct infinitely many reduced reversible automata accepting such a language.

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State Complexity of Prefix Distance of Subregular Languages,er a binary alphabet. For finite and prefix-free regular languages the lower bound constructions use an alphabet that depends on the size of the DFA and it is shown that the size of the alphabet is optimal.

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0302-9743 r in computational models, such as Turing Machines, finte automata, grammars, splicing systems and others. The topics of this conference are related to all aspects of descriptional complexity. .978-3-319-41113-2978-3-319-41114-9Series ISSN 0302-9743 Series E-ISSN 1611-3349

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https://doi.org/10.1007/978-1-84628-768-8 bound can be met if all .(., .) states are reachable. We know that an alphabet of size at least . is required provided that .. The question of reachability, and hence also of the tightness of the bound .(., .) in general, remains open.