Vertex matrices are graphs showing interconnected concepts or data. These graphs can take a variety of shapes from traditional rows and columns of information to floating bubbles of conceptual ...

We consider the number of vertex independent sets i(G). In general, the problem of determining the value of i(G) is NP-complete. We present several upper and lower bounds for i(G) in terms of order, ...

This is a preview. Log in through your library . Abstract In a random graph, counts for the number of vertices with given degrees will typically be dependent. We show via a multivariate normal and a ...