主要对模糊数之间的H差运算的存在性进行研究。给出了一般模糊数H差存在的必要条件,对于常用的梯形模糊数以及三角模糊数分别给出H差存在的充分必要条件。
This paper discusses the existence of H-difference of fuzzy numbers. It is shown that the necessity condition for the existence of fuzzy numbers. For Trapezoidal fuzzy numbers and triangle fuzzy numbers, the sufficiency and necessity condition for the existence of H-difference are given.