Trees special type graph from "summary" of Introduction to Graph Theory by Douglas Brent West
A tree is a special type of graph that is simple in structure yet rich in properties. A tree is an undirected graph that is connected and has no cycles. This means that a tree consists of a set of vertices connected by edges, with the property that there is a unique path between any two vertices in the tree. The simplicity of trees makes them a fundamental object of study in graph theory. Trees provide a natural way to model hierarchical relationships, such as family trees or organizational structures. In addition, trees have important applications in computer science, where they are used to represent data structures such as binary trees or search trees. One key property of...
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