A hierarchy of deterministic context-free ω-languages

被引:26
|
作者
Duparc, J
机构
[1] CNRS, Equipe Log Math, URA 753, F-75251 Paris 05, France
[2] Univ Paris 07, UFR Math, F-75251 Paris, France
关键词
deterministic context-free omega-languages; pushdown automata; Wadge hierarchy;
D O I
10.1016/S0304-3975(02)00567-4
中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
Twenty years ago, Klaus. W. Wagner came up with a hierarchy of omega-regular sets that actually bears his name. It turned out to be exactly the Wadge hierarchy of the sets of 0)omega-words recognized by deterministic finite automata. We describe the Wadge hierarchy of context-free omega-languages, which stands as an extension of Wagner's work from automata to pushdown automata. (C) 2002 Elsevier Science B.V. All rights reserved.
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页码:1253 / 1300
页数:48
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