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Some properties of finite special string-rewriting systems

✍ Scribed by Louxin Zhang


Book ID
103918609
Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
567 KB
Volume
14
Category
Article
ISSN
0747-7171

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✦ Synopsis


This paper investigates decision problems of finite, special string-rewriting systems . There are two main results . The first one is that the word problem for a finite, special string-rewriting system T on alphabet A is reducible to its restricted version: given a word w, is w congruent to any fixed element z on A? Another is a Markov type theorem : a property P is undecidable for finite, special string-rewriting systems if P implies any fixed Markov property of finitely presented special monoids and there exists a finite, special string-rewriting system R on alphabet C with the property that a finite, special string-rewriting system T on A has P whenever M(A ;T) is isomorphic to M(C ; R) .


πŸ“œ SIMILAR VOLUMES


It is undecidable whether a finite speci
✍ Paliath Narendran; Colm Γ“'DΓΊnlaing; Friedrich Otto πŸ“‚ Article πŸ“… 1991 πŸ› Elsevier Science 🌐 English βš– 398 KB

It is shown that it is undecidable in general whether or not a monoid that is presented by a finite special string-rewriting system is a group. The given proof uses the technique of canonical string-rewriting systems.