Center Diameter Eccentricity Girth Radius Maximum Degree Minimum Degree Degree Sequence Center returns a Set containing pointers to the vertices with eccentricity equal to the graph radius.
Diameter returns the diameter of the graph as an integer.
Girth, Radius, Maximum and Minimum Degree return the appropriate value as an integer. Degree Sequence returns a list of the degrees of each vertex, sorted by degree. Bridges returns a list of lists containing the pointers to the vertices representing each bridge. Articulation Points returns a list of pointers to the vertices which are articulation points. They each return a sequence of pointers to vertices, in the appropriate order.