Let G be the graph below, with 11 vertices and 20 edges. Clearly explain why x(G) = 4.
Let G be the graph below, with 11 vertices and 20 edges. Clearly explain why x(G) = 4.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question
Regarding Graph Colouring algorithms.
Given a graph G, we say that G is k-colourable if every vertex of G can be assigned one of k colours so
that for every pair u, v of adjacent vertices, u and v are assigned different colours.
The chromatic number of a graph G, denoted by χ(G), is the smallest integer k for which graph G is k-colorable. To show that χ(G) = k, you must show that the graph is k-colourable and that the graph is not (k − 1)-colourable.

Transcribed Image Text:Let G be the graph below, with 11 vertices and 20 edges. Clearly explain why x(G) = 4.
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