On three-way two-dimensional multicounter automata
โ Scribed by Andrzej Szepietowski
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 899 KB
- Volume
- 55
- Category
- Article
- ISSN
- 0020-0255
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
For each positive integer n, let -~eN(n ) be the class of sets accepted by a family of automata of type N, each with a read-only input with endmarkers and n two-way input heads. The following result, which is applicable to most types of two-way multihead devices, is proved: If for each positive inte
It is shown that multiplication and square root extraction can be performed by the two-way automata of Kreider and Ritchie, thus answering questions raised by those authors. Square root extraction is straightforward (yielding an integer root and a remainder), but multiplication is achieved only by c