Directed acyclic graph
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In mathematics, particularly graph theory, and computer science, a directed acyclic graph is a directed graph with no directed cycles. That is, it consists of vertices and edges, with each edge direct
Family tree of the Ptolemaic dynasty, with many marriages between close relatives causing pedigree collapse
Graph (discrete mathematics)
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In discrete mathematics, particularly in graph theory, a graph is a structure consisting of a set of objects where some pairs of the objects are in some sense "related". The objects are represented by
Directed acyclic graph
…Directed acyclic graphs are also called acyclic directed graphs or acyclic digraphs. A graph is formed by vertices and by edges connecting pairs of vertices, where the vertices can be any kind of object that is connected in pairs by edges. In…
A mixed graph with three vertices, two directed edges, and an undirected edge