Expressiveness of propositional projection temporal logic with star
Expressiveness of propositional projection temporal logic with star
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DOI:
10.1016/j.tcs.2010.12.047
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发表时间:
2011-04
期刊:
影响因子:
--
通讯作者:
Cong Tian;Zhenhua Duan
中科院分区:
文献类型:
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作者:
Cong Tian;Zhenhua Duan
This paper investigates the expressiveness of Propositional Projection Temporal Logic with Star (PPTL*). To this end, Büchi automata and ω-regular expressions are first extended as Stutter Büchi Automata (SBA) and Extended Regular Expressions (ERE) to include both finite and infinite strings. Further, by equivalent transformations among PPTL* formulas, SBAs and EREs, PPTL* is proved to represent exactly the full regular language. Moreover, some fragments of PPTL* are characterized, and finally, PPTL* and its fragments are classified into five different language classes.