Some properties of finite special string-rewriting systems
β Scribed by Louxin Zhang
- Book ID
- 103918609
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 567 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0747-7171
No coin nor oath required. For personal study only.
β¦ 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) .
π SIMILAR VOLUMES
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.