Simulation modeling with event graphs

<P>This article presents a graph-based modeling system for structured modeling that supports model formulation, maintenance, and solution. The graph-based modeling system for structured modeling uses directed acyclic graphs called model graphs to ...

We provide a complete structural characterization of $K_{2,4}$-minor-free graphs. The 3-connected $K_{2,4}$-minor-free graphs consist of nine small graphs on at most eight vertices, together with a family of planar graphs that contains $2n-8$ ...

A star coloring of an undirected graph G is a proper vertex coloring of G (i.e., no two neighbors are assigned the same color) such that any path of length 3 in G is not bicolored. The star chromatic number of an undirected graph G, denoted by χ_s(G), is ...