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arXiv 1701.01971cs.FL
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后向确定弱交替$ω$ -自动机

Backward deterministic and weak alternating $ω$-automata

Sebastian Preugschat, Thomas Wilke

摘要:

我们提出了一个弱交替$ω$ -自动机到等价的后向确定性$ω$ -自动机的直接转换,并显示(1)如何使用它来获得一个非确定性Büchi自动机到等价的后向确定性自动机的转换和(2)当应用于线性时间时序逻辑公式时,它产生最佳的等价后向确定性自动机。(1)使用的交替自由片段的线性时间$μ$演算作为中间步骤;(2)是基于直接翻译的线性时间时序逻辑弱交替$ω$ -自动机。

英文摘要:

We present a direct transformation of weak alternating $ω$-automata into equivalent backward deterministic $ω$-automata and show (1) how it can be used to obtain a transformation of non-deterministic Büchi automata into equivalent backward deterministic automata and (2) that it yields optimal equivalent backward deterministic automata when applied to linear-time temporal logic formulas. (1) uses the alternation-free fragment of the linear-time $μ$-calculus as an intermediate step; (2) is based on the straightforward translation of linear-time temporal logic into weak alternating $ω$-automata.

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