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http://hdl.handle.net/11455/68684| 標題: | Free submonoids in the monoid of languages | 作者: | Shyr, H.J. Tsai, Y.S. |
Project: | Discrete Mathematics | 期刊/報告no：: | Discrete Mathematics, Volume 181, Issue 1-3, Page(s) 213-222. | 摘要: | The monoid of language M is the family of languages M = {A \ empty set not equal A subset of or equal to X+ or A = {1}}, where X+ is the free semigroup generated by the finite alphabet X containing more than one letter and 1 is the empty word. This paper is a study of free submonoids in M. We found a free submonoid of M which contains the family of all finite prefix codes. |
URI: | http://hdl.handle.net/11455/68684 | ISSN: | 0012-365X | DOI: | 10.1016/s0012-365x(97)00037-x |
| Appears in Collections: | 期刊論文 |
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