18 Questions
What is a set of vertices and a set of undirected edges each of which is associated with a set of one or two of these vertices?
An undirected graph
What is the degree of a vertex v in an undirected graph?
The number of edges incident with v with loops counted twice
What is a graph with directed edges that may contain multiple directed edges?
A directed multigraph
What is an edge connecting a vertex with itself?
A loop
What is an undirected graph with no multiple edges or loops?
A simple graph
What is the underlying undirected graph of a graph with directed edges?
The graph obtained by ignoring the directions of the edges
What is the out-degree of the vertex v in a graph with directed edges?
The number of edges with v as their initial vertex
What is a graph with vertex set that can be partitioned into subsets V1 and V2 so that each edge connects a vertex in V1 and a vertex in V2?
A bipartite graph
What is a graph with vertex set that has an edge between each pair of vertices?
A complete graph
What is a characteristic of a simple graph?
It has no multiple edges or loops
What is the term for two vertices connected by an edge?
Adjacent
What type of graph has an edge between each pair of vertices?
Complete graph
What is the in-degree of a vertex v in a graph with directed edges?
The number of edges with v as their terminal vertex
What is a characteristic of a multigraph?
It may contain multiple edges
What is a characteristic of a directed edge?
It is associated with an ordered pair of vertices
What is the term for an edge associated with a set {u, v}?
Undirected edge
What type of graph may contain multiple edges and loops?
Pseudograph
What is the out-degree of a vertex v in a graph with directed edges?
The number of edges with v as their initial vertex
Learn about different types of edges in graph theory, including undirected, directed, multiple, and loops. Explore the definitions of undirected graphs and their components.
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