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A convex figure constructed by iteratively halving the base of an equilateral triangle and then sliding adjacent triangles so that they slightly overlap. Combining several ...

A theorem which plays a fundamental role in computer science because it is one of the main tools for showing that certain orderings on trees are well-founded. These orderings ...

A limb of a tree at a vertex v is the union of one or more branches at v in the tree. v is then called the base of the limb.

The vertex height of a vertex v in a rooted tree is the number of edges on the longest downward path between v and a tree leaf. The height of the root vertex of a rooted tree ...

A tree spread in which each node has a finite number of children.

A fork of a tree T is a node of T which is the endpoint of two or more branches.

A tree G^' whose graph vertices and graph edges form subsets of the graph vertices and graph edges of a given tree G.

A point in a weighted tree that has minimum weight for the tree. The set of all centroid points is called a tree centroid (Harary 1994, p. 36). The largest possible values ...

The depth of a vertex v in a rooted tree as the number of edges from v to the root vertex. A function to return the depth of a vertex v in a tree g may be implemented in a ...

A node which is one graph edge further away from a given node in a rooted tree.