本文提出了区间值函数单调的概念,并利用所定义的区间值函数刻划了模糊数值函数的H-差,H-可导性和S-可导性及其相互关系.
In this paper, we introduce the concept of monotonicity of interval functions and give the characterization of fuzzy valued functions which satisfies the H-difference. Furthermore, relations among H-difference, H-differentiability and S-differentiability are discussed.