西北大学学报(自然科学版)
西北大學學報(自然科學版)
서북대학학보(자연과학판)
JOURNAL OF NORTHWEST UNIVERSITY(NATURAL SCIENCE EDITION)
2002年
4期
347-350
,共4页
半群%幂等元半环%带%自由对象
半群%冪等元半環%帶%自由對象
반군%멱등원반배%대%자유대상
semigroup%idempotent semiring%band%bi-closed subband
给出带的双闭子带和它的性质及特征.在此基础上,给出加法半群为半格的幂等元半环簇中的自由对象.
給齣帶的雙閉子帶和它的性質及特徵.在此基礎上,給齣加法半群為半格的冪等元半環簇中的自由對象.
급출대적쌍폐자대화타적성질급특정.재차기출상,급출가법반군위반격적멱등원반배족중적자유대상.
The bi-closed subbands of a band are introduced and its some properties and characterizations are given. By using these results, the free object in the variety of idempotent semirings whose additive reducts are semilattices is established.
