In this paper the notion of rational fuzzy language is introduced, and a theorem is obtained: a fuzzy subset of Σ* ......

对于环R,令V(R)为所有有限生成投射右R模的同构等价类组成的Monoid.该文主要讨论了几种情况下的V(R)的结构.当R是Artin正则环时,可......

For a monoid M, we introduce M-McCoy rings, which are generalization of McCoy rings, and we investigate their properties......

Any RNA strand can be presented by a word in the language X*, where X={A,C,G,U}. By encoding A as 010, C as 000, G as 11......