IdenticalQ[g, h] yields True if graphs g and h have identical edge lists, even though the associated graphics information need not be the same.
IncidenceMatrix[g] gives the vertex-edge incidence matrix of the graph g.
FindVertexCover[g] finds a vertex cover of the graph g with a minimum number of vertices.
MakeUndirected[g] gives the underlying undirected graph of the given directed graph g.
RemoveSinks is an option of PageRanks, PageRankVector, LinkRanks and LinkRankMatrix that specifies whether sinks are removed by linking with all vertices.
FindIndependentVertexSet[g] finds an independent vertex set of the graph g with a maximum number of vertices.
VertexShapeFunction is an option and property for Graph and related functions that specifies a function to use to generate primitives for rendering each vertex.
GraphCenter[g] gives a list of the vertices of graph g with minimum eccentricity.
HasseDiagram[g] constructs a Hasse diagram of the relation defined by directed acyclic graph g.
MaximalMatching[g] gives the list of edges associated with a maximal matching of graph g.