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中文摘要：
研究了一种特殊的模糊度量ρ，称为区间值度量。区间数的运算（如加减乘除运算）在相关文献中已有定义，对区间数的减法运算进行新的定义，得到相应的不等式性质，接着给出了区间值度量的定义；介绍了区间值度量空间中相关的定义，如收敛序列、Cauchy序列以及完备性等；讨论了区间值度量空间中的不动点定理和公共不动点定理。
英文摘要：
This paper studies a special kind of fuzzy metric p, called interval-valued metric. The operations of interval number （such as addition subtraction multiplication divition） are given in related references, the subtraction operation of interval num- ber is redefined, and the corresponding inequality properties are obtained. Then the definition of interval-valued metric is given. Some related conception in interval-valued metric space are introduced, such as convergent sequence, Cauchy sequence and completeness etc, and the fixed point theorem and common fixed point theorem in interval-valued metric space are presented.
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