机构地区: 兰州大学数学系
出 处: 《兰州大学学报(自然科学版)》 1995年第4期16-21,共6页
摘 要: 提出了一个比半环和分配格序半群更一般的概念──双半环,讨论了双半环的一些基本性质,对一类双半环的同余给出了刻划。 The notion of bi-semirings is introduced,which is a generalization of semirings and distributive lattice-ordered semigroups. Some fundarnental properties of bi-semirings are discussed and a characterization of congruences on certain bi-semirings is described by the concept of strong ideals.