Created by Karl Marx. Marxism is not Communism, its what communism based its ideas on. Communism was starlins dream for russia, Karl Marx, lived in the early 1800's and did write the communist manifesto, for the communist party,that was 1848, based on his marxist ideas along time before starlin.
In mathematics, we call a visual representation of a network a graph. A graph is a collection of points, called vertices, and line segments connecting those points, called edges. The number of edges that belong to a vertex is called the degree of the vertex.
Graph drawing. Graph drawing is an area of mathematics and computer science combining methods from geometric graph theory and information visualization to derive two-dimensional depictions of graphs arising from applications such as social network analysis, cartography, linguistics, and bioinformatics. A drawing of a graph or network diagram is a pictorial representation of the vertices and edges of a graph. This drawing should not be confused with the graph itself: very different layouts can correspond to the same graph. In the abstract, all that matters is which pairs of vertices are connected by edges.