%0 Journal Article %T 集合Λ上的半格Γ确定的二元关系半群PΓ(Λ×Λ)的不可分解元<br>Non-solvabla elements of semigroup PΓ(Λ×Λ)of binary relations determined by the semilattice Γ on the set Λ %A 林屏峰 %J 山东大学学报(理学版) %D 2016 %R 10.6040/j.issn.1671-9352.0.2015.060 %X 摘要: 设Λ是任意的非空集合,Γ是集合Λ上的半格,PΓ(Λ×Λ)是集合Λ上的半格Γ确定的二元关系半群。得到了半群PΓ(Λ×Λ)的不可分解元的一个充分必要条件,并且在一定条件下找到了一类不可分解元。<br>Abstract: Let Λ be an arbitrary nonempty set, and Γ be a semilattice on the set Λ. Let PΓ(Λ×Λ)is a semigroup of binary relations determined by the semilattice Γ on the set Λ. In the semigroup PΓ(Λ×Λ), a necessary and sufficient condition of non-solvable elements is obtained,and a class of non-solvable elements is found under certain conditions %K 不可分解元 %K 二元关系半群 %K 半格 %K < %K br> %K semigroup of binary relations %K non-solvable elements %K semilattices %U http://lxbwk.njournal.sdu.edu.cn/CN/10.6040/j.issn.1671-9352.0.2015.060