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Interval-valued fuzzy graphs. (English) Zbl 1211.05133

Summary: We define the Cartesian product, composition, union and join on interval-valued fuzzy graphs and investigate some of their properties. We also introduce the notion of interval-valued fuzzy complete graphs and present some properties of self-complementary and self-weak complementary interval-valued fuzzy complete graphs.

MSC:

05C72 Fractional graph theory, fuzzy graph theory
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