Equivalence of pushdown automata via first-order grammars

被引:2
作者
Jancar, Petr [1 ]
机构
[1] Palacky Univ Olomouc, Fac Sci, Dept Comp Sci, Olomouc, Czech Republic
关键词
Pushdown automata; First-order grammars; Bisimulation equivalence; DECIDABILITY; BISIMILARITY;
D O I
10.1016/j.jcss.2020.07.004
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
A decidability proof for bisimulation equivalence of first-order grammars is given. It is an alternative proof for a result by Senizergues (1998, 2005) that subsumes his affirmative solution of the famous decidability question for deterministic pushdown automata. The presented proof is conceptually simpler, and a particular novelty is that it is not given as two semidecision procedures but it provides an explicit algorithm that might be amenable to a complexity analysis. (C) 2020 Elsevier Inc. All rights reserved.
引用
收藏
页码:86 / 112
页数:27
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