L－fts中的强导集和强导算子

The Strong Derived Set and the Strong Derived Operator in L -fts

研究了Ｌ－ｆｕｚｚｙ拓扑空间中ＬＦ集的强聚点和强导集的性质，证明了强导运算保并的十个等价条件。

The concepts of the strong accumulation point and the derived set in L -fts are studied and their properties are systematically discussed.The second ten conditions that are equivalent to (A∨B) d s =A d s ∨B d s for any A,B∈L X are obtained.The last the concept of L -strong derived operator on a completely distributive lattice L X is introduced,and correspond relation between it and L-fts is gived.