证明了区间值强模糊图类对笛卡尔积和合成运算封闭但对并运算和联运算不封闭,给出了它们对并运算和联运算封闭的条件,研究了合成、并、联运算和补运算之间的关系。
In this paper, it is proved that the class of interval-valued strong fuzzy graphs is closed under operations of cartesian product and composition, but not under union and join. The conditions under which the class is closed under operations of union and join are obtained, connections between operations of composition, union, and join and operation of complement are also studied.