approximation rough digraphs
supra open digraphs
fuzzy digraphs.
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In this thesis, we introduce eight types of topologies on a finite
digraphs and state the implication between these topologies. Also we studied
some pawlak's concepts and generalization rough set theory, we introduce a
new types for approximation rough digraphs depending on supra open
digraphs.
In addition, we present two various standpoints to define generalized
membership relations, and state the implication between it, to classify the
digraphs and help for measure exactness and roughness of digraphs.
On the other hand, we define several kinds of fuzzy digraphs.
We also introduce a topological space, which is induced by reflexive
graph and tolerance graphs, such that the graph may be infinite. Furthermore,
we offered some properties of th
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